Windows Analysis Report
C1ZsNxSer8.exe

Overview

General Information

Sample name: C1ZsNxSer8.exe
renamed because original name is a hash value
Original sample name: 4fb3e6e7b8f9c12cd2d5e161f7b94760.exe
Analysis ID: 1482895
MD5: 4fb3e6e7b8f9c12cd2d5e161f7b94760
SHA1: 57bdad62c6ea7f1b905c900302f918d185811a94
SHA256: f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb
Tags: 64exetrojan
Infos:

Detection

Remcos
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Contains functionality to bypass UAC (CMSTPLUA)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Injects a PE file into a foreign processes
Writes to foreign memory regions
Abnormal high CPU Usage
Allocates memory with a write watch (potentially for evading sandboxes)
Contains functionality for read data from the clipboard
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 modify clipboard data
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)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE file contains sections with non-standard names
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

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
Found malware configuration
Source: 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp Malware Configuration Extractor: Remcos {"Host:Port:Password": "unifrieghtmovers.com:2558:1", "Assigned name": "Gasplant", "Connect interval": "1", "Install flag": "Disable", "Setup HKCU\\Run": "Enable", "Setup HKLM\\Run": "Enable", "Install path": "Application path", "Copy file": "remcos.exe", "Startup value": "Disable", "Hide file": "Disable", "Mutex": "chrome-E2SMAR", "Keylog flag": "0", "Keylog path": "Application path", "Keylog file": "logs.dat", "Keylog crypt": "Disable", "Hide keylog file": "Disable", "Screenshot flag": "Disable", "Screenshot time": "10", "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"}
Multi AV Scanner detection for submitted file
Source: C1ZsNxSer8.exe ReversingLabs: Detection: 23%
Yara detected Remcos RAT
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: C1ZsNxSer8.exe PID: 3432, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: CasPol.exe PID: 6780, type: MEMORYSTR
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 100.0% probability
Uses Microsoft's Enhanced Cryptographic Provider
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00433837 CryptAcquireContextA,CryptGenRandom,CryptReleaseContext, 6_2_00433837
Source: C1ZsNxSer8.exe, 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp Binary or memory string: -----BEGIN PUBLIC KEY----- memstr_8ee8cf23-d

Exploits
barindex
Yara detected UAC Bypass using CMSTP
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: C1ZsNxSer8.exe PID: 3432, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: CasPol.exe PID: 6780, type: MEMORYSTR

Privilege Escalation
barindex
Contains functionality to bypass UAC (CMSTPLUA)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004074FD _wcslen,CoGetObject, 6_2_004074FD
Source: C1ZsNxSer8.exe Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, TERMINAL_SERVER_AWARE
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00409253 __EH_prolog,__CxxThrowException@8,FindFirstFileW,FindNextFileW,FindClose,FindClose, 6_2_00409253
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041C291 FindFirstFileW,FindNextFileW,RemoveDirectoryW,SetFileAttributesW,DeleteFileW,GetLastError,FindClose,RemoveDirectoryW,FindClose, 6_2_0041C291
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040C34D FindFirstFileW,PathFileExistsW,FindNextFileW,FindClose,FindClose, 6_2_0040C34D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00409665 __EH_prolog,FindFirstFileW,FindNextFileW,FindClose,FindClose, 6_2_00409665
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0044E879 FindFirstFileExA, 6_2_0044E879
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040880C __EH_prolog,FindFirstFileW,__CxxThrowException@8,FindNextFileW,FindClose, 6_2_0040880C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040783C FindFirstFileW,FindNextFileW, 6_2_0040783C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00419AF5 FindFirstFileW,FindNextFileW,FindNextFileW, 6_2_00419AF5
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040BB30 FindFirstFileA,FindClose,DeleteFileA,GetLastError,DeleteFileA,GetLastError,FindNextFileA,FindClose, 6_2_0040BB30
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040BD37 FindFirstFileA,FindClose,DeleteFileA,GetLastError,FindNextFileA,FindClose,FindClose, 6_2_0040BD37
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00407C97 SetEvent,GetFileAttributesW,DeleteFileW,ShellExecuteW,GetLogicalDriveStringsA,SetFileAttributesW,DeleteFileA,Sleep,StrToIntA,CreateDirectoryW, 6_2_00407C97

Networking
barindex
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: unifrieghtmovers.com
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.7:49701 -> 23.95.60.82:2558
HTTP GET or POST without a user agent
Source: global traffic HTTP traffic detected: GET /json.gp HTTP/1.1Host: geoplugin.netCache-Control: no-cache
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 178.237.33.50 178.237.33.50
Source: Joe Sandbox View IP Address: 23.95.60.82 23.95.60.82
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: AS-COLOCROSSINGUS AS-COLOCROSSINGUS
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041B380 InternetOpenW,InternetOpenUrlW,InternetReadFile,InternetCloseHandle,InternetCloseHandle,InternetCloseHandle, 6_2_0041B380
Source: global traffic HTTP traffic detected: GET /json.gp HTTP/1.1Host: geoplugin.netCache-Control: no-cache
Source: global traffic DNS traffic detected: DNS query: unifrieghtmovers.com
Source: global traffic DNS traffic detected: DNS query: geoplugin.net
Source: CasPol.exe, CasPol.exe, 00000006.00000002.3738453046.0000000000FE5000.00000004.00000020.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3738453046.0000000000FB4000.00000004.00000020.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3738453046.0000000000FC8000.00000004.00000020.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://geoplugin.net/json.gp
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FB4000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://geoplugin.net/json.gp-
Source: C1ZsNxSer8.exe, 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp String found in binary or memory: http://geoplugin.net/json.gp/C
Source: CasPol.exe, 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://geoplugin.net/json.gpSystem32
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FB4000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://geoplugin.net/json.gpl
Source: C1ZsNxSer8.exe String found in binary or memory: https://aka.ms/GlobalizationInvariantMode
Source: C1ZsNxSer8.exe String found in binary or memory: https://aka.ms/nativeaot-c
Source: C1ZsNxSer8.exe String found in binary or memory: https://aka.ms/nativeaot-compatibility
Source: C1ZsNxSer8.exe, 00000001.00000002.1279022919.00007FF774B3B000.00000004.00000001.01000000.00000003.sdmp String found in binary or memory: https://aka.ms/nativeaot-compatibilityX
Source: C1ZsNxSer8.exe String found in binary or memory: https://aka.ms/nativeaot-compatibilityY
Source: C1ZsNxSer8.exe String found in binary or memory: https://aka.ms/nativeaot-compatibilityy

Key, Mouse, Clipboard, Microphone and Screen Capturing
barindex
Contains functionality to register a low level keyboard hook
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040A2B8 SetWindowsHookExA 0000000D,0040A2A4,00000000 6_2_0040A2B8
Contains functionality for read data from the clipboard
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040B70E OpenClipboard,GetClipboardData,CloseClipboard, 6_2_0040B70E
Contains functionality to modify clipboard data
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004168C1 OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,GlobalUnlock,SetClipboardData,CloseClipboard,OpenClipboard,GetClipboardData,GlobalLock,GlobalUnlock,CloseClipboard, 6_2_004168C1
Contains functionality to read the clipboard data
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040B70E OpenClipboard,GetClipboardData,CloseClipboard, 6_2_0040B70E
Contains functionality to retrieve information about pressed keystrokes
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040A3E0 GetForegroundWindow,GetWindowThreadProcessId,GetKeyboardLayout,GetKeyState,GetKeyboardState,ToUnicodeEx,ToUnicodeEx,ToUnicodeEx,ToUnicodeEx, 6_2_0040A3E0

E-Banking Fraud
barindex
Yara detected Remcos RAT
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: C1ZsNxSer8.exe PID: 3432, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: CasPol.exe PID: 6780, type: MEMORYSTR

Spam, unwanted Advertisements and Ransom Demands
barindex
Contains functionalty to change the wallpaper
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041C9E2 SystemParametersInfoW, 6_2_0041C9E2

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE Matched rule: REMCOS_RAT_variants Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: REMCOS_RAT_variants Author: unknown
Source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) Author: ditekSHen
Source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: Process Memory Space: C1ZsNxSer8.exe PID: 3432, type: MEMORYSTR Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Source: Process Memory Space: CasPol.exe PID: 6780, type: MEMORYSTR Matched rule: Windows_Trojan_Remcos_b296e965 Author: unknown
Abnormal high CPU Usage
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Process Stats: CPU usage > 49%
Contains functionality to shutdown / reboot the system
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004167B4 ExitWindowsEx,LoadLibraryA,GetProcAddress, 6_2_004167B4
Detected potential crypto function
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A30750 1_2_00007FF774A30750
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A19140 1_2_00007FF774A19140
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A2C350 1_2_00007FF774A2C350
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A2ED00 1_2_00007FF774A2ED00
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A2F550 1_2_00007FF774A2F550
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A2DE20 1_2_00007FF774A2DE20
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A337F0 1_2_00007FF774A337F0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A28F30 1_2_00007FF774A28F30
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A1FF90 1_2_00007FF774A1FF90
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A080B0 1_2_00007FF774A080B0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A13910 1_2_00007FF774A13910
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A328F0 1_2_00007FF774A328F0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A319F0 1_2_00007FF774A319F0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A1F9E4 1_2_00007FF774A1F9E4
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774AB4160 1_2_00007FF774AB4160
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A34160 1_2_00007FF774A34160
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A28AB0 1_2_00007FF774A28AB0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A38BC0 1_2_00007FF774A38BC0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A16BB6 1_2_00007FF774A16BB6
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A1E4E0 1_2_00007FF774A1E4E0
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A12C50 1_2_00007FF774A12C50
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A32480 1_2_00007FF774A32480
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0043E0CC 6_2_0043E0CC
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041F0FA 6_2_0041F0FA
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00454159 6_2_00454159
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00438168 6_2_00438168
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004461F0 6_2_004461F0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0043E2FB 6_2_0043E2FB
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0045332B 6_2_0045332B
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0042739D 6_2_0042739D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004374E6 6_2_004374E6
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0043E558 6_2_0043E558
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00438770 6_2_00438770
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004378FE 6_2_004378FE
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00433946 6_2_00433946
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0044D9C9 6_2_0044D9C9
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00427A46 6_2_00427A46
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041DB62 6_2_0041DB62
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00427BAF 6_2_00427BAF
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00437D33 6_2_00437D33
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00435E5E 6_2_00435E5E
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00426E0E 6_2_00426E0E
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0043DE9D 6_2_0043DE9D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00413FCA 6_2_00413FCA
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00436FEA 6_2_00436FEA
Found potential string decryption / allocating functions
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: String function: 00434E10 appears 54 times
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: String function: 00402093 appears 50 times
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: String function: 00434770 appears 41 times
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: String function: 00401E65 appears 34 times
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: String function: 00007FF774A09D50 appears 51 times
Sample file is different than original file name gathered from version info
Source: C1ZsNxSer8.exe Binary or memory string: OriginalFilename vs C1ZsNxSer8.exe
Source: C1ZsNxSer8.exe, 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp Binary or memory string: OriginalFilenameGetHRForExceptionRoundToNegativeInfinityScalar.dll~/ vs C1ZsNxSer8.exe
Source: C1ZsNxSer8.exe, 00000001.00000002.1270156855.00000145BEC00000.00000004.00001000.00020000.00000000.sdmp Binary or memory string: OriginalFilenameGetHRForExceptionRoundToNegativeInfinityScalar.dll~/ vs C1ZsNxSer8.exe
Source: C1ZsNxSer8.exe Binary or memory string: OriginalFilenameGetHRForExceptionRoundToNegativeInfinityScalar.dll~/ vs C1ZsNxSer8.exe
Yara signature match
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.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.C1ZsNxSer8.exe.145bfbc3ae0.0.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.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 6.2.CasPol.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: 6.2.CasPol.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: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 6.2.CasPol.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: 6.2.CasPol.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: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.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.C1ZsNxSer8.exe.145bf964228.2.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.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.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.C1ZsNxSer8.exe.145bfbc3ae0.0.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.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 1.2.C1ZsNxSer8.exe.145bf964228.2.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: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.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: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.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: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY Matched rule: INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM author = ditekSHen, description = Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.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: C1ZsNxSer8.exe PID: 3432, 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: CasPol.exe PID: 6780, 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: C1ZsNxSer8.exe Static PE information: Section: .rsrc ZLIB complexity 0.9982945393041237
Source: classification engine Classification label: mal100.rans.troj.spyw.expl.evad.winEXE@4/1@2/2
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A12A80 LookupPrivilegeValueW,GetCurrentProcess,OpenProcessToken,AdjustTokenPrivileges,GetLastError,CloseHandle,GetLargePageMinimum,VirtualAlloc,GetCurrentProcess,VirtualAllocExNuma, 1_2_00007FF774A12A80
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00417952 GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueA,AdjustTokenPrivileges,GetLastError, 6_2_00417952
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040F474 GetModuleFileNameW,CreateToolhelp32Snapshot,Process32FirstW,Process32NextW,CloseHandle,CloseHandle, 6_2_0040F474
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041B4A8 FindResourceA,LoadResource,LockResource,SizeofResource, 6_2_0041B4A8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041AA4A OpenSCManagerW,OpenServiceW,CloseServiceHandle,StartServiceW,CloseServiceHandle,CloseServiceHandle,CloseServiceHandle, 6_2_0041AA4A
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe File created: C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\BEDT2L3A\json[1].json Jump to behavior
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:6000:120:WilError_03
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Mutant created: \Sessions\1\BaseNamedObjects\chrome-E2SMAR
Source: C1ZsNxSer8.exe Static file information: TRID: Win64 Executable GUI Net Framework (217006/5) 49.88%
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C1ZsNxSer8.exe ReversingLabs: Detection: 23%
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe File read: C:\Users\user\Desktop\C1ZsNxSer8.exe Jump to behavior
Source: unknown Process created: C:\Users\user\Desktop\C1ZsNxSer8.exe "C:\Users\user\Desktop\C1ZsNxSer8.exe"
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe" Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: winmm.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: urlmon.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: wininet.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: iertutil.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: rstrtmgr.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: ncrypt.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: ntasn1.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: dnsapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: rasadhlp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: fwpuclnt.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: cryptsp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: rsaenh.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0358b920-0ac7-461f-98f4-58e32cd89148}\InProcServer32 Jump to behavior
Source: C1ZsNxSer8.exe Static PE information: Image base 0x140000000 > 0x60000000
Source: C1ZsNxSer8.exe Static file information: File size 2673152 > 1048576
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IMPORT
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_RESOURCE
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_BASERELOC
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_IAT
Source: C1ZsNxSer8.exe Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, TERMINAL_SERVER_AWARE
Source: C1ZsNxSer8.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG
Source: C1ZsNxSer8.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: C1ZsNxSer8.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: C1ZsNxSer8.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: C1ZsNxSer8.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: C1ZsNxSer8.exe Static PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata
Contains functionality to dynamically determine API calls
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041CB50 LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,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,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress, 6_2_0041CB50
PE file contains sections with non-standard names
Source: C1ZsNxSer8.exe Static PE information: section name: .managed
Source: C1ZsNxSer8.exe Static PE information: section name: hydrated
Uses code obfuscation techniques (call, push, ret)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00457106 push ecx; ret 6_2_00457119
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0045B11A push esp; ret 6_2_0045B141
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0045E54D push esi; ret 6_2_0045E556
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00457A28 push eax; ret 6_2_00457A46
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00434E56 push ecx; ret 6_2_00434E69
Contains functionality to download and launch executables
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00406EB0 ShellExecuteW,URLDownloadToFileW, 6_2_00406EB0
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041AA4A OpenSCManagerW,OpenServiceW,CloseServiceHandle,StartServiceW,CloseServiceHandle,CloseServiceHandle,CloseServiceHandle, 6_2_0041AA4A
Extensive use of GetProcAddress (often used to hide API calls)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041CB50 LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,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,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress, 6_2_0041CB50
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Delayed program exit found
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040F7A7 Sleep,ExitProcess, 6_2_0040F7A7
Allocates memory with a write watch (potentially for evading sandboxes)
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory allocated: 145BBD80000 memory reserve | memory write watch Jump to behavior
Contains functionality to enumerate running services
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: OpenSCManagerA,EnumServicesStatusW,GetLastError,EnumServicesStatusW,OpenServiceW,QueryServiceConfigW,GetLastError,QueryServiceConfigW,CloseServiceHandle,CloseServiceHandle, 6_2_0041A748
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Window / User API: threadDelayed 4908 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Window / User API: threadDelayed 5082 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe TID: 4340 Thread sleep count: 4908 > 30 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe TID: 4340 Thread sleep time: -14724000s >= -30000s Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe TID: 4340 Thread sleep count: 5082 > 30 Jump to behavior
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe TID: 4340 Thread sleep time: -15246000s >= -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\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00409253 __EH_prolog,__CxxThrowException@8,FindFirstFileW,FindNextFileW,FindClose,FindClose, 6_2_00409253
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041C291 FindFirstFileW,FindNextFileW,RemoveDirectoryW,SetFileAttributesW,DeleteFileW,GetLastError,FindClose,RemoveDirectoryW,FindClose, 6_2_0041C291
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040C34D FindFirstFileW,PathFileExistsW,FindNextFileW,FindClose,FindClose, 6_2_0040C34D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00409665 __EH_prolog,FindFirstFileW,FindNextFileW,FindClose,FindClose, 6_2_00409665
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0044E879 FindFirstFileExA, 6_2_0044E879
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040880C __EH_prolog,FindFirstFileW,__CxxThrowException@8,FindNextFileW,FindClose, 6_2_0040880C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040783C FindFirstFileW,FindNextFileW, 6_2_0040783C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00419AF5 FindFirstFileW,FindNextFileW,FindNextFileW, 6_2_00419AF5
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040BB30 FindFirstFileA,FindClose,DeleteFileA,GetLastError,DeleteFileA,GetLastError,FindNextFileA,FindClose, 6_2_0040BB30
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0040BD37 FindFirstFileA,FindClose,DeleteFileA,GetLastError,FindNextFileA,FindClose,FindClose, 6_2_0040BD37
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00407C97 SetEvent,GetFileAttributesW,DeleteFileW,ShellExecuteW,GetLogicalDriveStringsA,SetFileAttributesW,DeleteFileA,Sleep,StrToIntA,CreateDirectoryW, 6_2_00407C97
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A126B0 GetSystemInfo,GetNumaHighestNodeNumber,GetCurrentProcess,GetProcessGroupAffinity,GetLastError,GetCurrentProcess,GetProcessAffinityMask, 1_2_00007FF774A126B0
Source: C1ZsNxSer8.exe Binary or memory string: qEMutating a value collection derived from a dictionary is not allowed.Y
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FFE000.00000004.00000020.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FE5000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAWH.
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe API call chain: ExitProcess graph end node
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004349F9 IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 6_2_004349F9
Contains functionality to dynamically determine API calls
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041CB50 LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetModuleHandleA,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,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,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,GetModuleHandleA,GetProcAddress,GetModuleHandleA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress,LoadLibraryA,GetProcAddress, 6_2_0041CB50
Contains functionality to read the PEB
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004432B5 mov eax, dword ptr fs:[00000030h] 6_2_004432B5
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00412077 GetProcessHeap,HeapFree, 6_2_00412077
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A05760 RtlAddVectoredExceptionHandler, 1_2_00007FF774A05760
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A69A88 SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 1_2_00007FF774A69A88
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_004349F9 IsProcessorFeaturePresent,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 6_2_004349F9
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00434B47 SetUnhandledExceptionFilter, 6_2_00434B47
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0043BB22 IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 6_2_0043BB22
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00434FDC SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 6_2_00434FDC

HIPS / PFW / Operating System Protection Evasion
barindex
Allocates memory in foreign processes
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory allocated: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.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\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 400000 value starts with: 4D5A Jump to behavior
Writes to foreign memory regions
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 400000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 401000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 459000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 471000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 477000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 478000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 479000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: 47E000 Jump to behavior
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Memory written: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe base: B96008 Jump to behavior
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetCurrentProcessId,OpenMutexA,CloseHandle,CreateThread,CloseHandle,Sleep,OpenProcess, svchost.exe 6_2_004120F7
Contains functionality to simulate mouse events
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00419627 mouse_event, 6_2_00419627
Creates a process in suspended mode (likely to inject code)
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Process created: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe" Jump to behavior
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FC8000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Program Manager
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FC8000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Program ManagerAc
Source: CasPol.exe, 00000006.00000002.3738453046.0000000000FB4000.00000004.00000020.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3738453046.0000000000FC8000.00000004.00000020.00020000.00000000.sdmp, CasPol.exe, 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: |Program Manager|
Contains functionality to query CPU information (cpuid)
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A05410 cpuid 1_2_00007FF774A05410
Contains functionality to query locales information (e.g. system language)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetLocaleInfoA, 6_2_0040F8D1
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: EnumSystemLocalesW, 6_2_00452036
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetLocaleInfoW,GetLocaleInfoW,GetLocaleInfoW, 6_2_004520C3
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetLocaleInfoW, 6_2_00452313
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: EnumSystemLocalesW, 6_2_00448404
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetLocaleInfoW,GetLocaleInfoW,GetACP, 6_2_0045243C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetLocaleInfoW, 6_2_00452543
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetUserDefaultLCID,IsValidCodePage,IsValidLocale,GetLocaleInfoW,GetLocaleInfoW, 6_2_00452610
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: GetLocaleInfoW, 6_2_004488ED
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: IsValidCodePage,_wcschr,_wcschr,GetLocaleInfoW, 6_2_00451CD8
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: EnumSystemLocalesW, 6_2_00451F50
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: EnumSystemLocalesW, 6_2_00451F9B
Source: C:\Users\user\Desktop\C1ZsNxSer8.exe Code function: 1_2_00007FF774A6955C GetSystemTimeAsFileTime,GetCurrentThreadId,GetCurrentProcessId,QueryPerformanceCounter, 1_2_00007FF774A6955C
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_0041B60D GetComputerNameExW,GetUserNameW, 6_2_0041B60D
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: 6_2_00449190 _free,_free,_free,GetTimeZoneInformation,WideCharToMultiByte,WideCharToMultiByte,_free, 6_2_00449190
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.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: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: C1ZsNxSer8.exe PID: 3432, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: CasPol.exe PID: 6780, type: MEMORYSTR
Contains functionality to steal Chrome passwords or cookies
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: \AppData\Local\Google\Chrome\User Data\Default\Login Data 6_2_0040BA12
Contains functionality to steal Firefox passwords or cookies
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: \AppData\Roaming\Mozilla\Firefox\Profiles\ 6_2_0040BB30
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: \key3.db 6_2_0040BB30

Remote Access Functionality
barindex
Yara detected Remcos RAT
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 6.2.CasPol.exe.400000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bfbc3ae0.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 1.2.C1ZsNxSer8.exe.145bf964228.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000006.00000002.3733384161.0000000000400000.00000040.00000400.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000006.00000002.3736494218.0000000000F77000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000001.00000002.1270156855.00000145BF964000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: C1ZsNxSer8.exe PID: 3432, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: CasPol.exe PID: 6780, type: MEMORYSTR
Contains functionality to launch a control a shell (cmd.exe)
Source: C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe Code function: cmd.exe 6_2_0040569A
windows-stand
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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 dnsIp2 2 Behavior Graph ID: 1482895 Sample: C1ZsNxSer8.exe Startdate: 26/07/2024 Architecture: WINDOWS Score: 100 16 unifrieghtmovers.com 2->16 18 geoplugin.net 2->18 24 Found malware configuration 2->24 26 Malicious sample detected (through community Yara rule) 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 4 other signatures 2->30 7 C1ZsNxSer8.exe 1 2->7         started        signatures3 process4 signatures5 32 Writes to foreign memory regions 7->32 34 Allocates memory in foreign processes 7->34 36 Injects a PE file into a foreign processes 7->36 10 CasPol.exe 3 13 7->10         started        14 conhost.exe 7->14         started        process6 dnsIp7 20 unifrieghtmovers.com 23.95.60.82, 2558, 49701 AS-COLOCROSSINGUS United States 10->20 22 geoplugin.net 178.237.33.50, 49702, 80 ATOM86-ASATOM86NL Netherlands 10->22 38 Contains functionality to bypass UAC (CMSTPLUA) 10->38 40 Contains functionalty to change the wallpaper 10->40 42 Contains functionality to steal Chrome passwords or cookies 10->42 44 3 other signatures 10->44 signatures8
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
178.237.33.50
 geoplugin.net Netherlands
8455 ATOM86-ASATOM86NL false
23.95.60.82
 unifrieghtmovers.com United States
36352 AS-COLOCROSSINGUS true

Contacted Domains

Name IP Active
geoplugin.net 178.237.33.50 true
unifrieghtmovers.com 23.95.60.82 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://geoplugin.net/json.gp false
  • URL Reputation: safe
 unknown
unifrieghtmovers.com true
  • Avira URL Cloud: safe
 unknown