Windows Analysis Report
20250328 PO AE_MECH_0581pdf(86KB).com.exe

Overview

General Information

Sample name: 20250328 PO AE_MECH_0581pdf(86KB).com.exe
Analysis ID: 1650946
MD5: a1cda8858afe746bb1fedcdb5c5a49d4
SHA1: d1a885f3834a122d207cada3721dc49ecfe2de92
SHA256: ff6fa92920b6946fd679c658215775dae4e99223f6f2542559d5eea9b00af7ed
Tags: exeuser-lowmal3
Infos:

Detection

DarkTortilla, Remcos
Score: 100
Range: 0 - 100
Confidence: 100%

Signatures

Antivirus detection for URL or domain
Antivirus detection for dropped file
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: Windows Binaries Write Suspicious Extensions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if the current process is being debugged
Contains functionality for read data from the clipboard
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to download and launch executables
Contains functionality to dynamically determine API calls
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Contains functionality to enumerate running services
Contains functionality to launch a control a shell (cmd.exe)
Contains functionality to launch a process as a different user
Contains functionality to modify clipboard data
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
Drops PE files to the application program directory (C:\ProgramData)
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found WSH timer for Javascript or VBS script (likely evasive script)
Found evaded block containing many API calls
Found evasive API chain (may stop execution after accessing registry keys)
Found evasive API chain checking for process token information
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
May sleep (evasive loops) to hinder dynamic analysis
PE file contains sections with non-standard names
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: CurrentVersion Autorun Keys Modification
Sigma detected: Uncommon Svchost Parent Process
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Sigma detected: Wow6432Node CurrentVersion Autorun Keys Modification
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Name Description Attribution Blogpost URLs Link
DarkTortilla DarkTortilla is a complex and highly configurable .NET-based crypter that has possibly been active since at least August 2015. It typically delivers popular information stealers and remote access trojans (RATs) such as AgentTesla, AsyncRat, NanoCore, and RedLine. While it appears to primarily deliver commodity malware, Secureworks Counter Threat Unit (CTU) researchers identified DarkTortilla samples delivering targeted payloads such as Cobalt Strike and Metasploit. It can also deliver "addon packages" such as additional malicious payloads, benign decoy documents, and executables. It features robust anti-analysis and anti-tamper controls that can make detection, analysis, and eradication challenging.From January 2021 through May 2022, an average of 93 unique DarkTortilla samples per week were uploaded to the VirusTotal analysis service. Code similarities suggest possible links between DarkTortilla and other malware: a crypter operated by the RATs Crew threat group, which was active between 2008 and 2012, and the Gameloader malware that emerged in 2021. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.darktortilla
Name Description Attribution Blogpost URLs Link
Remcos, RemcosRAT Remcos (acronym of Remote Control & Surveillance Software) is a commercial Remote Access Tool to remotely control computers.Remcos is advertised as legitimate software which can be used for surveillance and penetration testing purposes, but has been used in numerous hacking campaigns.Remcos, once installed, opens a backdoor on the computer, granting full access to the remote user.Remcos is developed by the cybersecurity company BreakingSecurity.
  • APT33
  • The Gorgon Group
  • UAC-0050
 https://malpedia.caad.fkie.fraunhofer.de/details/win.remcos

AV Detection
barindex
Antivirus detection for URL or domain
Source: code1.ydns.eu Avira URL Cloud: Label: phishing
Antivirus detection for dropped file
Source: C:\Users\user\AppData\Local\Temp\install.vbs Avira: detection malicious, Label: VBS/Runner.VPD
Found malware configuration
Source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp Malware Configuration Extractor: Remcos {"Host:Port:Password": ["rency.ydns.eu:2404:1", "wqo9.firewall-gateway.de:4045:1", "code1.ydns.eu:9302:1"], "Assigned name": "CLIT", "Connect interval": "1", "Install flag": "Enable", "Setup HKCU\\Run": "Enable", "Setup HKLM\\Run": "Enable", "Install path": "Application path", "Copy file": "System.exe", "Startup value": "MicroSoft", "Hide file": "Enable", "Mutex": "TCWd3hQ5LP1Fcm2U5B0fn3xuWp5u5rQsC2Y-5G08SQ", "Keylog flag": "1", "Keylog path": "Application path", "Keylog file": "logs.dat", "Keylog crypt": "Disable", "Hide keylog file": "Disable", "Screenshot flag": "Disable", "Screenshot time": "1", "Take Screenshot option": "Disable", "Take screenshot title": "", "Take screenshot time": "5", "Screenshot path": "AppData", "Screenshot file": "Screenshots", "Screenshot crypt": "Disable", "Mouse option": "Disable", "Delete file": "Disable", "Audio record time": "5", "Audio folder": "MicRecords", "Connect delay": "0", "Copy folder": "MicroSoft Outlook", "Keylog folder": "remcos", "Keylog file max size": "100"}
Multi AV Scanner detection for submitted file
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Virustotal: Detection: 56% Perma Link
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe ReversingLabs: Detection: 63%
Yara detected Remcos RAT
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1638691906.0000000002E00000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: svchost.exe PID: 1676, type: MEMORYSTR
Joe Sandbox ML detected suspicious sample
Source: Submited Sample Neural Call Log Analysis: 96.7%
Uses Microsoft's Enhanced Cryptographic Provider
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004315EC CryptAcquireContextA,CryptGenRandom,CryptReleaseContext, 1_2_004315EC
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp Binary or memory string: -----BEGIN PUBLIC KEY----- memstr_9b944ed7-3
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: Binary string: svchost.pdb source: svchost.exe, 00000001.00000003.1633235414.0000000002E21000.00000004.00000020.00020000.00000000.sdmp, System.exe, System.exe, 00000008.00000002.1659016513.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 00000009.00000000.1758959129.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000A.00000000.1840802461.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000E.00000000.1923257341.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe.1.dr
Source: Binary string: svchost.pdbUGP source: svchost.exe, 00000001.00000003.1633235414.0000000002E21000.00000004.00000020.00020000.00000000.sdmp, System.exe, 00000008.00000002.1659016513.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 00000009.00000000.1758959129.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000A.00000000.1840802461.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000E.00000000.1923257341.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe.1.dr
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041A01B FindFirstFileW,FindNextFileW,RemoveDirectoryW,SetFileAttributesW,DeleteFileW,GetLastError,FindClose,RemoveDirectoryW,FindClose, 1_2_0041A01B
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040B28E FindFirstFileW,PathFileExistsW,FindNextFileW,FindClose,FindClose, 1_2_0040B28E
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040838E __EH_prolog,__CxxThrowException@8,FindFirstFileW,FindNextFileW,FindClose,FindClose, 1_2_0040838E
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004087A0 __EH_prolog,FindFirstFileW,FindNextFileW,FindClose,FindClose, 1_2_004087A0
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00407848 __EH_prolog,FindFirstFileW,__CxxThrowException@8,FindNextFileW,FindClose, 1_2_00407848
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004068CD FindFirstFileW,FindNextFileW, 1_2_004068CD
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0044BA59 FindFirstFileExA, 1_2_0044BA59
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040AA71 FindFirstFileA,FindClose,DeleteFileA,GetLastError,DeleteFileA,GetLastError,FindNextFileA,FindClose, 1_2_0040AA71
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00417AAB FindFirstFileW,FindNextFileW,FindNextFileW, 1_2_00417AAB
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040AC78 FindFirstFileA,FindClose,DeleteFileA,GetLastError,FindNextFileA,FindClose,FindClose, 1_2_0040AC78
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00406D28 SetEvent,GetFileAttributesW,DeleteFileW,ShellExecuteW,GetLogicalDriveStringsA,DeleteFileA,Sleep,StrToIntA,CreateDirectoryW, 1_2_00406D28
Found inlined nop instructions (likely shell or obfuscated code)
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov ecx, dword ptr [ebp-38h] 0_2_05EE0F78
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then lea esp, dword ptr [ebp-08h] 0_2_08210FEF
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then lea esp, dword ptr [ebp-08h] 0_2_08211070
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 0_2_08AB7468
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then push dword ptr [ebp-24h] 0_2_08AB7E60
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh 0_2_08AB7E60
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 0_2_08AB77E0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 0_2_08AB7700
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 0_2_08AB79C4
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then push dword ptr [ebp-20h] 0_2_08AB7B34
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh 0_2_08AB7B34
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then push dword ptr [ebp-20h] 0_2_08AB7B40
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh 0_2_08AB7B40
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then xor edx, edx 0_2_08AB7D8C
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then xor edx, edx 0_2_08AB7D98
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then push dword ptr [ebp-24h] 0_2_08AB7E54
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 7FFFFFFFh 0_2_08AB7E54
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 0_2_08AB77FC
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 4x nop then mov dword ptr [ebp-1Ch], 00000000h 0_2_08AB77F0

Networking
barindex
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: rency.ydns.eu
Source: Malware configuration extractor URLs: wqo9.firewall-gateway.de
Source: Malware configuration extractor URLs: code1.ydns.eu
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041936B InternetOpenW,InternetOpenUrlW,InternetReadFile,InternetCloseHandle,InternetCloseHandle,InternetCloseHandle, 1_2_0041936B
Source: svchost.exe String found in binary or memory: http://geoplugin.net/json.gp
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, svchost.exe, 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: http://geoplugin.net/json.gp/C
Contains functionality for read data from the clipboard
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040A65A OpenClipboard,GetClipboardData,CloseClipboard, 1_2_0040A65A
Contains functionality to modify clipboard data
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00414EC1 OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,GlobalUnlock,SetClipboardData,CloseClipboard,OpenClipboard,GetClipboardData,GlobalLock,GlobalUnlock,CloseClipboard, 1_2_00414EC1
Contains functionality to read the clipboard data
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040A65A OpenClipboard,GetClipboardData,CloseClipboard, 1_2_0040A65A
Contains functionality to retrieve information about pressed keystrokes
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00409468 GetForegroundWindow,GetWindowThreadProcessId,GetKeyboardLayout,GetKeyState,GetKeyboardState,ToUnicodeEx, 1_2_00409468

E-Banking Fraud
barindex
Yara detected Remcos RAT
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1638691906.0000000002E00000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: svchost.exe PID: 1676, type: MEMORYSTR

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: REMCOS_RAT_variants Author: unknown
Source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: detects Windows exceutables potentially bypassing UAC using eventvwr.exe Author: ditekSHen
Source: 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: Process Memory Space: svchost.exe PID: 1676, type: MEMORYSTR Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Source: C:\Windows\SysWOW64\wscript.exe COM Object queried: Windows Script Host Shell Object HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{72C24DD5-D70A-438B-8A42-98424B88AFB8} Jump to behavior
Contains functionality to call native functions
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B433C0 NtSetInformationProcess,SetUnhandledExceptionFilter,SetErrorMode,GetProcessHeap,InitializeSRWLock,InitializeSRWLock,RegDisablePredefinedCacheEx,EventRegister,GetCommandLineW,memset,GetCurrentProcess,NtSetInformationProcess,HeapFree,HeapFree,ExitProcess,GetCurrentProcess,SetProcessAffinityUpdateMode, 8_2_00B433C0
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B42720 RegOpenKeyExW,RegOpenKeyExW,RegOpenKeyExW,RegCloseKey,RegCloseKey,HeapAlloc,RegQueryValueExW,ExpandEnvironmentStringsW,LCMapStringW,RegQueryValueExW,HeapFree,AcquireSRWLockShared,ReleaseSRWLockShared,HeapAlloc,memcpy,memcpy,AcquireSRWLockExclusive,ReleaseSRWLockExclusive,RegGetValueW,ActivateActCtx,LoadLibraryExW,MultiByteToWideChar,RtlRunOnceExecuteOnce,NtQuerySystemInformation,GetProcAddress,DeactivateActCtx,ActivateActCtx,MultiByteToWideChar,RtlRunOnceExecuteOnce,NtQuerySystemInformation,GetProcAddress,DeactivateActCtx,ActivateActCtx,MultiByteToWideChar,RtlRunOnceExecuteOnce,NtQuerySystemInformation,GetProcAddress,DeactivateActCtx,RegCloseKey,HeapAlloc,RegGetValueW,WideCharToMultiByte,HeapAlloc,WideCharToMultiByte,HeapFree,ExpandEnvironmentStringsW,HeapFree,CreateActCtxW,GetLastError,HeapFree,HeapFree,GetLastError,CreateActCtxW,GetLastError,ReleaseActCtx,GetLastError,GetLastError,RtlNtStatusToDosError,GetLastError,LoadLibraryExW,RtlNtStatusToDosError,LoadLibraryExW,RtlNtStatusToDosError,HeapFree,ReleaseActCtx, 8_2_00B42720
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43540 RtlImageNtHeader,RpcMgmtSetServerStackSize,I_RpcServerDisableExceptionFilter,RtlSetProcessIsCritical,SetProcessMitigationPolicy,SetProcessMitigationPolicy,SetProcessMitigationPolicy,SetProtectedPolicy,HeapSetInformation,NtSetInformationProcess, 8_2_00B43540
Contains functionality to launch a process as a different user
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E406538 CreateProcessAsUserW, 0_2_0E406538
Contains functionality to shutdown / reboot the system
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00414DB4 ExitWindowsEx,LoadLibraryA,GetProcAddress, 1_2_00414DB4
Detected potential crypto function
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_01B2C4A0 0_2_01B2C4A0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_01B28BA0 0_2_01B28BA0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_01B24AE0 0_2_01B24AE0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_01B2D131 0_2_01B2D131
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_01B24AD1 0_2_01B24AD1
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_06854160 0_2_06854160
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0685E148 0_2_0685E148
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_06854151 0_2_06854151
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08215421 0_2_08215421
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08210040 0_2_08210040
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B8D0 0_2_0821B8D0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08217128 0_2_08217128
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08216510 0_2_08216510
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_082179A1 0_2_082179A1
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08219218 0_2_08219218
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08218374 0_2_08218374
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08210FEF 0_2_08210FEF
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08210014 0_2_08210014
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08211070 0_2_08211070
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08217070 0_2_08217070
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B4B0 0_2_0821B4B0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_082170E0 0_2_082170E0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821A0F1 0_2_0821A0F1
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B4C0 0_2_0821B4C0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821A100 0_2_0821A100
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_082191F0 0_2_082191F0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B286 0_2_0821B286
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B288 0_2_0821B288
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821AED0 0_2_0821AED0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B736 0_2_0821B736
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821B738 0_2_0821B738
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821ABE0 0_2_0821ABE0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821C3E7 0_2_0821C3E7
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0821ABD0 0_2_0821ABD0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB4018 0_2_08AB4018
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB8AF0 0_2_08AB8AF0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB5C30 0_2_08AB5C30
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB400A 0_2_08AB400A
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB8AE0 0_2_08AB8AE0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB5C20 0_2_08AB5C20
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB8531 0_2_08AB8531
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_08AB8540 0_2_08AB8540
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E406E98 0_2_0E406E98
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E401248 0_2_0E401248
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E400AF8 0_2_0E400AF8
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E4052B1 0_2_0E4052B1
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E406BA0 0_2_0E406BA0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E402F46 0_2_0E402F46
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E402F48 0_2_0E402F48
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E404727 0_2_0E404727
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E40A730 0_2_0E40A730
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E404CB0 0_2_0E404CB0
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E404548 0_2_0E404548
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E407534 0_2_0E407534
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E404539 0_2_0E404539
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E40AA48 0_2_0E40AA48
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E4052C5 0_2_0E4052C5
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E40BAD8 0_2_0E40BAD8
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E400AE7 0_2_0E400AE7
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E406B90 0_2_0E406B90
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E400040 0_2_0E400040
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E400006 0_2_0E400006
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00425152 1_2_00425152
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00435286 1_2_00435286
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004513D4 1_2_004513D4
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0045050B 1_2_0045050B
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00436510 1_2_00436510
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004316FB 1_2_004316FB
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0043569E 1_2_0043569E
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00443700 1_2_00443700
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004257FB 1_2_004257FB
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004128E3 1_2_004128E3
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00425964 1_2_00425964
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041B917 1_2_0041B917
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0043D9CC 1_2_0043D9CC
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00435AD3 1_2_00435AD3
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00424BC3 1_2_00424BC3
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0043DBFB 1_2_0043DBFB
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0044ABA9 1_2_0044ABA9
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00433C0B 1_2_00433C0B
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00434D8A 1_2_00434D8A
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0043DE2A 1_2_0043DE2A
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041CEAF 1_2_0041CEAF
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00435F08 1_2_00435F08
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B42720 8_2_00B42720
Dropped file seen in connection with other malware
Source: Joe Sandbox View Dropped File: C:\ProgramData\MicroSoft Outlook\System.exe 7EFA956EE9141F3EB637511D029A77842EDA925CB8A84425D2CCDF8A8A677FE1
Found potential string decryption / allocating functions
Source: C:\Windows\SysWOW64\svchost.exe Code function: String function: 00402073 appears 51 times
Source: C:\Windows\SysWOW64\svchost.exe Code function: String function: 00432B90 appears 53 times
Source: C:\Windows\SysWOW64\svchost.exe Code function: String function: 00432525 appears 41 times
Sample file is different than original file name gathered from version info
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1637648816.00000000016FE000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: OriginalFilenameclr.dllT vs 20250328 PO AE_MECH_0581pdf(86KB).com.exe
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000000.1285490825.00000000010D2000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: OriginalFilenameCLIT.exeH vs 20250328 PO AE_MECH_0581pdf(86KB).com.exe
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1650259495.0000000005B60000.00000004.08000000.00040000.00000000.sdmp Binary or memory string: OriginalFilenameFalimotin.dll4 vs 20250328 PO AE_MECH_0581pdf(86KB).com.exe
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1654960106.0000000008220000.00000004.08000000.00040000.00000000.sdmp Binary or memory string: OriginalFilenameRP8SH.dll6 vs 20250328 PO AE_MECH_0581pdf(86KB).com.exe
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Binary or memory string: OriginalFilenameCLIT.exeH vs 20250328 PO AE_MECH_0581pdf(86KB).com.exe
Yara signature match
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: REMCOS_RAT_variants Description = Detects multiple variants of REMCOS seen in the wild. Created by modifying and combining several of Florian\'s recent REMCOS ruleset. This rule aims for broader detection than the original ruleset, which used separate rules for each variant. If you do decide to break it into individual rules, the YARA strings variable names are grouped by the REMCOS variant type., Website = https://www.deadbits.org, Date = 2019-07-18, Repo = https://github.com/deadbits/yara-rules, Author = Adam M. Swanda
Source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer author = ditekSHen, description = detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Source: 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: Process Memory Space: svchost.exe PID: 1676, type: MEMORYSTR Matched rule: Windows_Trojan_Remcos_b296e965 reference_sample = 0ebeffa44bd1c3603e30688ace84ea638fbcf485ca55ddcfd6fbe90609d4f3ed, os = windows, severity = x86, creation_date = 2021-06-10, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Remcos, fingerprint = a5267bc2dee28a3ef58beeb7e4a151699e3e561c16ce0ab9eb27de33c122664d, id = b296e965-a99e-4446-b969-ba233a2a8af4, last_modified = 2021-08-23
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, t3XY.cs Cryptographic APIs: 'CreateDecryptor'
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, t3L8TrZy.cs Cryptographic APIs: 'CreateDecryptor', 'TransformFinalBlock'
Source: classification engine Classification label: mal100.troj.spyw.evad.winEXE@13/3@0/0
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00415C90 GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueA,AdjustTokenPrivileges,GetLastError, 1_2_00415C90
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040E2E7 CreateToolhelp32Snapshot,Process32FirstW,Process32NextW,Process32NextW,CloseHandle, 1_2_0040E2E7
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00419493 FindResourceA,LoadResource,LockResource,SizeofResource, 1_2_00419493
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00418A00 OpenSCManagerW,OpenServiceW,CloseServiceHandle,StartServiceW,CloseServiceHandle,CloseServiceHandle,CloseServiceHandle, 1_2_00418A00
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43360 I_RegisterSvchostNotificationCallback,StartServiceCtrlDispatcherW,ExitProcess, 8_2_00B43360
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe File created: C:\Users\user\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\20250328 PO AE_MECH_0581pdf(86KB).com.exe.log Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Mutant created: NULL
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:2332:120:WilError_03
Source: C:\Windows\SysWOW64\svchost.exe Mutant created: \Sessions\1\BaseNamedObjects\TCWd3hQ5LP1Fcm2U5B0fn3xuWp5u5rQsC2Y-5G08SQ
Source: C:\Windows\SysWOW64\svchost.exe File created: C:\Users\user\AppData\Local\Temp\install.vbs Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Process created: C:\Windows\SysWOW64\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\install.vbs"
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.79%
Source: C:\Windows\SysWOW64\svchost.exe File read: C:\Users\user\Desktop\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Virustotal: Detection: 56%
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe ReversingLabs: Detection: 63%
Source: unknown Process created: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe "C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe"
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process created: C:\Windows\SysWOW64\svchost.exe "C:\Windows\system32\svchost.exe"
Source: C:\Windows\SysWOW64\svchost.exe Process created: C:\Windows\SysWOW64\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\install.vbs"
Source: C:\Windows\SysWOW64\wscript.exe Process created: C:\Windows\SysWOW64\cmd.exe "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\MicroSoft Outlook\System.exe"
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\ProgramData\MicroSoft Outlook\System.exe "C:\ProgramData\MicroSoft Outlook\System.exe"
Source: unknown Process created: C:\ProgramData\MicroSoft Outlook\System.exe "C:\ProgramData\MicroSoft Outlook\System.exe"
Source: unknown Process created: C:\ProgramData\MicroSoft Outlook\System.exe "C:\ProgramData\MicroSoft Outlook\System.exe"
Source: unknown Process created: C:\ProgramData\MicroSoft Outlook\System.exe "C:\ProgramData\MicroSoft Outlook\System.exe"
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process created: C:\Windows\SysWOW64\svchost.exe "C:\Windows\system32\svchost.exe" Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Process created: C:\Windows\SysWOW64\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\install.vbs" Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Process created: C:\Windows\SysWOW64\cmd.exe "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\MicroSoft Outlook\System.exe" Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\ProgramData\MicroSoft Outlook\System.exe "C:\ProgramData\MicroSoft Outlook\System.exe" Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: mscoree.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: vcruntime140_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: ucrtbase_clr0400.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: gpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: dwrite.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Section loaded: windowscodecs.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: winmm.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: urlmon.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: wininet.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: iertutil.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: ntmarta.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: propsys.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: edputil.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: windows.staterepositoryps.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: policymanager.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: msvcp110_win.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: wintypes.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: appresolver.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: bcp47langs.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: slc.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: sppc.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: onecorecommonproxystub.dll Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Section loaded: onecoreuapcommonproxystub.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: version.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: sxs.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: vbscript.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: amsi.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: msasn1.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: msisip.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: wshext.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: scrobj.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: mlang.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: scrrun.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: mpr.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: gpapi.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: propsys.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: edputil.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: urlmon.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: iertutil.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: windows.staterepositoryps.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: wintypes.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: appresolver.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: bcp47langs.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: slc.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: sppc.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: onecorecommonproxystub.dll Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Section loaded: onecoreuapcommonproxystub.dll Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0EE7644B-1BAD-48B1-9889-0281C206EB85}\InprocServer32 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll Jump to behavior
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static PE information: Virtual size of .text is bigger than: 0x100000
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static file information: File size 1211904 > 1048576
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static PE information: Raw size of .text is bigger than: 0x100000 < 0x127600
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: Binary string: svchost.pdb source: svchost.exe, 00000001.00000003.1633235414.0000000002E21000.00000004.00000020.00020000.00000000.sdmp, System.exe, System.exe, 00000008.00000002.1659016513.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 00000009.00000000.1758959129.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000A.00000000.1840802461.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000E.00000000.1923257341.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe.1.dr
Source: Binary string: svchost.pdbUGP source: svchost.exe, 00000001.00000003.1633235414.0000000002E21000.00000004.00000020.00020000.00000000.sdmp, System.exe, 00000008.00000002.1659016513.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 00000009.00000000.1758959129.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000A.00000000.1840802461.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe, 0000000E.00000000.1923257341.0000000000B41000.00000020.00000001.01000000.0000000A.sdmp, System.exe.1.dr

Data Obfuscation
barindex
Yara detected DarkTortilla Crypter
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.5b60000.6.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.5b60000.6.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.1650259495.0000000005B60000.00000004.08000000.00040000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1638934372.0000000003601000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR
Contains functionality to dynamically determine API calls
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041A8DA LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress, 1_2_0041A8DA
PE file contains sections with non-standard names
Source: System.exe.1.dr Static PE information: section name: .didat
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_01B273AF push edi; retn 0000h 0_2_01B273B1
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_05EED5A8 push eax; retn 059Ch 0_2_05EEE355
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Code function: 0_2_0E4052B1 push cs; retn 404Eh 0_2_0E4052B8
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004000D8 push es; iretd 1_2_004000D9
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040008C push es; iretd 1_2_0040008D
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004542E6 push ecx; ret 1_2_004542F9
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0045B4FD push esi; ret 1_2_0045B506
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00432BD6 push ecx; ret 1_2_00432BE9
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00454C08 push eax; ret 1_2_00454C26
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, j7W9Kzf5.cs High entropy of concatenated method names: 'Zn5k0D9J', 'j2T3Yta4', 'i6W3YqMm', 'e4W6Rdk1', 'Dispose', 'k0LXi8x5', 'MoveNext', 'Pk8t1N6E', 'GetEnumerator', 'At83Mer7'
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, t3L8TrZy.cs High entropy of concatenated method names: 'Sf81Ecd6', 'r5CKj1n0', 'p9MSg35R', 'Mj9o7B8Z', 'g5E1Wbz8', 'Gd02QmWa', 'Ze90Rqw3', 'b8P5DyCw', 'w3R9Kab5', 'o2K7Fik5'
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, p2GCy6e9.cs High entropy of concatenated method names: 't2QZz90M', 'Pr6i8X1W', 'Ci7c2FRk', 'Je1x6R9Y', 's1HYc5o3', 'Mj12Bdr3', 'g5LAi03G', 'q0E1QfCx', 'q2A5Fgy3', 'Js0x7ZBf'
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, Co06NsPg.cs High entropy of concatenated method names: 'Yr54Mng6', 'Sj21Qfz4', 'z7R0Lex4', 'Rr7t1S6F', 'a4GXw0m9', 'd6BSg85M', 'b2WMq9o5', 'g0Z7Mwk1', 'Lm26Pxr8', 'Jw7m1E5Z'
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, Rs5y.cs High entropy of concatenated method names: 'c1T9Dng0', 'Dz7c9HKk', 'm5S6HjEp', 'Qz36WnGr', 'Kg34NcHd', 'Xy1k5H4E', 'Cr74Aoj6', 'o8THc97A', 'Pz13YoDe', 'q7JGp42M'
Contains functionality to download and launch executables
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004063C6 ShellExecuteW,URLDownloadToFileW, 1_2_004063C6
Drops PE files
Source: C:\Windows\SysWOW64\svchost.exe File created: C:\ProgramData\MicroSoft Outlook\System.exe Jump to dropped file
Drops PE files to the application program directory (C:\ProgramData)
Source: C:\Windows\SysWOW64\svchost.exe File created: C:\ProgramData\MicroSoft Outlook\System.exe Jump to dropped file
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00418A00 OpenSCManagerW,OpenServiceW,CloseServiceHandle,StartServiceW,CloseServiceHandle,CloseServiceHandle,CloseServiceHandle, 1_2_00418A00
Source: C:\Windows\SysWOW64\svchost.exe Registry value created or modified: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run MicroSoft Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Registry value created or modified: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run MicroSoft Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Registry value created or modified: HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run MicroSoft Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Registry value created or modified: HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run MicroSoft Jump to behavior

Hooking and other Techniques for Hiding and Protection
barindex
Hides that the sample has been downloaded from the Internet (zone.identifier)
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe File opened: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe\:Zone.Identifier read attributes | delete Jump to behavior
Extensive use of GetProcAddress (often used to hide API calls)
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041A8DA LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress, 1_2_0041A8DA
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Yara detected AntiVM3
Source: Yara match File source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR
Delayed program exit found
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040E18D Sleep,ExitProcess, 1_2_0040E18D
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: 1A40000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: 3600000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: 1A40000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: 8E60000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: 9E60000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: A040000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: B040000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: B3F0000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: C3F0000 memory reserve | memory write watch Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: D3F0000 memory reserve | memory write watch Jump to behavior
Contains functionality to enumerate running services
Source: C:\Windows\SysWOW64\svchost.exe Code function: OpenSCManagerA,EnumServicesStatusW,GetLastError,EnumServicesStatusW,OpenServiceW,QueryServiceConfigW,GetLastError,QueryServiceConfigW,CloseServiceHandle,CloseServiceHandle, 1_2_004186FE
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found WSH timer for Javascript or VBS script (likely evasive script)
Source: C:\Windows\SysWOW64\wscript.exe Window found: window name: WSH-Timer Jump to behavior
Found evaded block containing many API calls
Source: C:\Windows\SysWOW64\svchost.exe Evaded block: after key decision
Source: C:\Windows\SysWOW64\svchost.exe Evaded block: after key decision
Found evasive API chain (may stop execution after accessing registry keys)
Source: C:\ProgramData\MicroSoft Outlook\System.exe Evasive API call chain: RegOpenKey,DecisionNodes,ExitProcess
Found evasive API chain checking for process token information
Source: C:\ProgramData\MicroSoft Outlook\System.exe Check user administrative privileges: GetTokenInformation,DecisionNodes
Found large amount of non-executed APIs
Source: C:\Windows\SysWOW64\svchost.exe API coverage: 5.6 %
Source: C:\ProgramData\MicroSoft Outlook\System.exe API coverage: 4.1 %
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe TID: 6264 Thread sleep time: -62000s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe TID: 2828 Thread sleep time: -2767011611056431s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe TID: 5504 Thread sleep time: -59000s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe TID: 3412 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041A01B FindFirstFileW,FindNextFileW,RemoveDirectoryW,SetFileAttributesW,DeleteFileW,GetLastError,FindClose,RemoveDirectoryW,FindClose, 1_2_0041A01B
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040B28E FindFirstFileW,PathFileExistsW,FindNextFileW,FindClose,FindClose, 1_2_0040B28E
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040838E __EH_prolog,__CxxThrowException@8,FindFirstFileW,FindNextFileW,FindClose,FindClose, 1_2_0040838E
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004087A0 __EH_prolog,FindFirstFileW,FindNextFileW,FindClose,FindClose, 1_2_004087A0
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00407848 __EH_prolog,FindFirstFileW,__CxxThrowException@8,FindNextFileW,FindClose, 1_2_00407848
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004068CD FindFirstFileW,FindNextFileW, 1_2_004068CD
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0044BA59 FindFirstFileExA, 1_2_0044BA59
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040AA71 FindFirstFileA,FindClose,DeleteFileA,GetLastError,DeleteFileA,GetLastError,FindNextFileA,FindClose, 1_2_0040AA71
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00417AAB FindFirstFileW,FindNextFileW,FindNextFileW, 1_2_00417AAB
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040AC78 FindFirstFileA,FindClose,DeleteFileA,GetLastError,FindNextFileA,FindClose,FindClose, 1_2_0040AC78
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00406D28 SetEvent,GetFileAttributesW,DeleteFileW,ShellExecuteW,GetLogicalDriveStringsA,DeleteFileA,Sleep,StrToIntA,CreateDirectoryW, 1_2_00406D28
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1650259495.0000000005B60000.00000004.08000000.00040000.00000000.sdmp Binary or memory string: VBoxTray
Source: 20250328 PO AE_MECH_0581pdf(86KB).com.exe, 00000000.00000002.1650259495.0000000005B60000.00000004.08000000.00040000.00000000.sdmp Binary or memory string: sandboxierpcssGSOFTWARE\VMware, Inc.\VMware VGAuth
Source: C:\ProgramData\MicroSoft Outlook\System.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process information queried: ProcessInformation Jump to behavior
Checks if the current process is being debugged
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process queried: DebugPort Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process queried: DebugPort Jump to behavior
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004327AE IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 1_2_004327AE
Contains functionality to dynamically determine API calls
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0041A8DA LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress, 1_2_0041A8DA
Contains functionality to read the PEB
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004407B5 mov eax, dword ptr fs:[00000030h] 1_2_004407B5
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B456A0 mov eax, dword ptr fs:[00000030h] 8_2_00B456A0
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B456A0 mov ecx, dword ptr fs:[00000030h] 8_2_00B456A0
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44610 mov eax, dword ptr fs:[00000030h] 8_2_00B44610
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44610 mov eax, dword ptr fs:[00000030h] 8_2_00B44610
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44610 mov eax, dword ptr fs:[00000030h] 8_2_00B44610
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44610 mov eax, dword ptr fs:[00000030h] 8_2_00B44610
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44410 mov eax, dword ptr fs:[00000030h] 8_2_00B44410
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44410 mov eax, dword ptr fs:[00000030h] 8_2_00B44410
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43060 mov eax, dword ptr fs:[00000030h] 8_2_00B43060
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43060 mov eax, dword ptr fs:[00000030h] 8_2_00B43060
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43060 mov eax, dword ptr fs:[00000030h] 8_2_00B43060
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43060 mov eax, dword ptr fs:[00000030h] 8_2_00B43060
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43540 mov eax, dword ptr fs:[00000030h] 8_2_00B43540
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43540 mov eax, dword ptr fs:[00000030h] 8_2_00B43540
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B43540 mov eax, dword ptr fs:[00000030h] 8_2_00B43540
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00410763 SetLastError,GetNativeSystemInfo,SetLastError,GetProcessHeap,HeapAlloc,SetLastError, 1_2_00410763
Enables debug privileges
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process token adjusted: Debug Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004327AE IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 1_2_004327AE
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004328FC SetUnhandledExceptionFilter, 1_2_004328FC
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004398AC IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 1_2_004398AC
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_00432D5C SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 1_2_00432D5C
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B433C0 NtSetInformationProcess,SetUnhandledExceptionFilter,SetErrorMode,GetProcessHeap,InitializeSRWLock,InitializeSRWLock,RegDisablePredefinedCacheEx,EventRegister,GetCommandLineW,memset,GetCurrentProcess,NtSetInformationProcess,HeapFree,HeapFree,ExitProcess,GetCurrentProcess,SetProcessAffinityUpdateMode, 8_2_00B433C0
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B45848 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 8_2_00B45848
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: page read and write | page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
Allocates memory in foreign processes
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory allocated: C:\Windows\SysWOW64\svchost.exe base: 400000 protect: page execute and read and write Jump to behavior
Injects a PE file into a foreign processes
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 400000 value starts with: 4D5A Jump to behavior
Writes to foreign memory regions
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 400000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 401000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 456000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 46E000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 474000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 475000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 476000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 47B000 Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Memory written: C:\Windows\SysWOW64\svchost.exe base: 606008 Jump to behavior
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetCurrentProcessId,OpenMutexA,CloseHandle,CreateThread,CloseHandle,Sleep,OpenProcess, svchost.exe 1_2_00410B5C
Contains functionality to simulate mouse events
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004175E1 mouse_event, 1_2_004175E1
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Process created: C:\Windows\SysWOW64\svchost.exe "C:\Windows\system32\svchost.exe" Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Process created: C:\Windows\SysWOW64\wscript.exe "C:\Windows\System32\WScript.exe" "C:\Users\user\AppData\Local\Temp\install.vbs" Jump to behavior
Source: C:\Windows\SysWOW64\wscript.exe Process created: C:\Windows\SysWOW64\cmd.exe "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\MicroSoft Outlook\System.exe" Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\ProgramData\MicroSoft Outlook\System.exe "C:\ProgramData\MicroSoft Outlook\System.exe" Jump to behavior
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B44610 GetCurrentProcess,OpenProcessToken,GetLastError,GetTokenInformation,GetLastError,GetTokenInformation,GetLastError,HeapAlloc,InitializeSecurityDescriptor,GetLastError,GetTokenInformation,GetLastError,GetTokenInformation,GetLastError,SetSecurityDescriptorOwner,GetLastError,SetSecurityDescriptorGroup,GetLastError,GetLengthSid,GetLengthSid,GetLengthSid,GetLengthSid,HeapAlloc,InitializeAcl,GetLastError,AddAccessAllowedAce,GetLastError,AddAccessAllowedAce,GetLastError,AddAccessAllowedAce,GetLastError,AddAccessAllowedAce,GetLastError,SetSecurityDescriptorDacl,GetLastError,CloseHandle,HeapFree,HeapFree, 8_2_00B44610
Contains functionality to query CPU information (cpuid)
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004329DA cpuid 1_2_004329DA
Contains functionality to query locales information (e.g. system language)
Source: C:\Windows\SysWOW64\svchost.exe Code function: EnumSystemLocalesW, 1_2_0044F17B
Source: C:\Windows\SysWOW64\svchost.exe Code function: EnumSystemLocalesW, 1_2_0044F130
Source: C:\Windows\SysWOW64\svchost.exe Code function: EnumSystemLocalesW, 1_2_0044F216
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetLocaleInfoW,GetLocaleInfoW,GetLocaleInfoW, 1_2_0044F2A3
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetLocaleInfoA, 1_2_0040E2BB
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetLocaleInfoW, 1_2_0044F4F3
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP, 1_2_0044F61C
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetLocaleInfoW, 1_2_0044F723
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW, 1_2_0044F7F0
Source: C:\Windows\SysWOW64\svchost.exe Code function: EnumSystemLocalesW, 1_2_00445914
Source: C:\Windows\SysWOW64\svchost.exe Code function: GetLocaleInfoW, 1_2_00445E1C
Source: C:\Windows\SysWOW64\svchost.exe Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW, 1_2_0044EEB8
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Queries volume information: C:\Windows\Fonts\micross.ttf VolumeInformation Jump to behavior
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_0040A0B0 GetLocalTime,wsprintfW, 1_2_0040A0B0
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004195F8 GetUserNameW, 1_2_004195F8
Source: C:\Windows\SysWOW64\svchost.exe Code function: 1_2_004466BF _free,_free,_free,GetTimeZoneInformation,WideCharToMultiByte,WideCharToMultiByte,_free, 1_2_004466BF
Source: C:\Users\user\Desktop\20250328 PO AE_MECH_0581pdf(86KB).com.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Stealing of Sensitive Information
barindex
Yara detected Remcos RAT
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1638691906.0000000002E00000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: svchost.exe PID: 1676, type: MEMORYSTR
Contains functionality to steal Chrome passwords or cookies
Source: C:\Windows\SysWOW64\svchost.exe Code function: \AppData\Local\Google\Chrome\User Data\Default\Login Data 1_2_0040A953
Contains functionality to steal Firefox passwords or cookies
Source: C:\Windows\SysWOW64\svchost.exe Code function: \AppData\Roaming\Mozilla\Firefox\Profiles\ 1_2_0040AA71
Source: C:\Windows\SysWOW64\svchost.exe Code function: \key3.db 1_2_0040AA71

Remote Access Functionality
barindex
Yara detected Remcos RAT
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46ec440.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.svchost.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.495ae52.3.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.46a09f0.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4abb290.5.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.48e5772.4.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.20250328 PO AE_MECH_0581pdf(86KB).com.exe.4a45bd2.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000001.00000002.1638213541.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.000000000479C000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004608000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1638691906.0000000002E00000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004A45000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.1647900850.0000000004870000.00000004.00000800.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 20250328 PO AE_MECH_0581pdf(86KB).com.exe PID: 1244, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: svchost.exe PID: 1676, type: MEMORYSTR
Contains functionality to launch a control a shell (cmd.exe)
Source: C:\Windows\SysWOW64\svchost.exe Code function: cmd.exe 1_2_0040567A
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B46BB0 RpcServerUnregisterIfEx,EnterCriticalSection,RpcMgmtStopServerListening,RpcMgmtWaitServerListen,LeaveCriticalSection,I_RpcMapWin32Status, 8_2_00B46BB0
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B46AF0 EnterCriticalSection,RpcServerListen,LeaveCriticalSection,I_RpcMapWin32Status, 8_2_00B46AF0
Source: C:\ProgramData\MicroSoft Outlook\System.exe Code function: 8_2_00B46B60 RpcServerUnregisterIf,EnterCriticalSection,RpcMgmtStopServerListening,RpcMgmtWaitServerListen,LeaveCriticalSection,I_RpcMapWin32Status, 8_2_00B46B60
windows-stand
Behavior
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1650946 Sample: 20250328 PO AE_MECH_0581pdf... Startdate: 28/03/2025 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 11 other signatures 2->44 9 20250328 PO AE_MECH_0581pdf(86KB).com.exe 3 2->9         started        13 System.exe 2->13         started        15 System.exe 2->15         started        17 System.exe 2->17         started        process3 file4 36 20250328 PO AE_MEC...f(86KB).com.exe.log, ASCII 9->36 dropped 54 Writes to foreign memory regions 9->54 56 Allocates memory in foreign processes 9->56 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->58 60 Injects a PE file into a foreign processes 9->60 19 svchost.exe 5 4 9->19         started        signatures5 process6 file7 32 C:\ProgramData\MicroSoft Outlook\System.exe, PE32 19->32 dropped 34 C:\Users\user\AppData\Local\...\install.vbs, data 19->34 dropped 46 Contains functionality to steal Chrome passwords or cookies 19->46 48 Contains functionality to steal Firefox passwords or cookies 19->48 50 Delayed program exit found 19->50 23 wscript.exe 1 19->23         started        signatures8 process9 signatures10 52 Windows Scripting host queries suspicious COM object (likely to drop second stage) 23->52 26 cmd.exe 1 23->26         started        process11 process12 28 conhost.exe 26->28         started        30 System.exe 26->30         started       
⊘No contacted IP infos

Contacted URLs

Name Malicious Antivirus Detection Reputation
rency.ydns.eu false
    		high
    wqo9.firewall-gateway.de false
      		high
      code1.ydns.eu true
      • Avira URL Cloud: phishing
      		 unknown