ScreenShot
| Created | 2024.09.02 10:38 | Machine | s1_win7_x6401 |
| Filename | 66d1eb58f2491_stealc_cry.exe#kiscrypto | ||
| Type | PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
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Behavior Score |
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| ZERO API | file : malware | ||
| VT API (file) | 23 detected (AIDetectMalware, malicious, high confidence, Unsafe, Attribute, HighConfidence, MalwareX, MSILIn, Static AI, Malicious PE, Detected, Stealerc, Sabsik, ZemsilF, qm2@aS7kDOh, confidence) | ||
| md5 | a2d6bc4c76921e184d0a81e79c40ede1 | ||
| sha256 | 9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce | ||
| ssdeep | 6144:Nm9eZof7jnUYN9mzfYJxM03MKJmuK9zrSaANpJe+PCnEO:Nm9IK77B9mz7KJhK9fSjJdPYEO | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (30cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| warning | File has been identified by 23 AntiVirus engines on VirusTotal as malicious |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Checks the CPU name from registry |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Collects information about installed applications |
| watch | Communicates with host for which no DNS query was performed |
| watch | Harvests credentials from local FTP client softwares |
| watch | Potential code injection by writing to the memory of another process |
| watch | Resumed a suspended thread in a remote process potentially indicative of process injection |
| watch | Used NtSetContextThread to modify a thread in a remote process indicative of process injection |
| notice | A process created a hidden window |
| notice | Allocates read-write-execute memory (usually to unpack itself) |
| notice | An executable file was downloaded by the process regasm.exe |
| notice | Creates a suspicious process |
| notice | Drops a binary and executes it |
| notice | HTTP traffic contains suspicious features which may be indicative of malware related traffic |
| notice | One or more potentially interesting buffers were extracted |
| notice | Performs some HTTP requests |
| notice | Searches running processes potentially to identify processes for sandbox evasion |
| notice | Sends data using the HTTP POST Method |
| notice | The binary likely contains encrypted or compressed data indicative of a packer |
| notice | Uses Windows utilities for basic Windows functionality |
| notice | Yara rule detected in process memory |
| info | Checks amount of memory in system |
| info | Checks if process is being debugged by a debugger |
| info | Command line console output was observed |
| info | Queries for the computername |
| info | This executable has a PDB path |
| info | Tries to locate where the browsers are installed |
Rules (22cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Client_SW_User_Data_Stealer | Client_SW_User_Data_Stealer | memory |
| warning | infoStealer_ftpClients_Zero | ftp clients info stealer | memory |
| watch | Antivirus | Contains references to security software | binaries (upload) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (upload) |
| notice | Generic_PWS_Memory_Zero | PWS Memory | memory |
| notice | Str_Win32_Http_API | Match Windows Http API call | memory |
| info | anti_dbg | Checks if being debugged | memory |
| info | DebuggerCheck__GlobalFlags | (no description) | memory |
| info | DebuggerCheck__QueryInfo | (no description) | memory |
| info | DebuggerException__SetConsoleCtrl | (no description) | memory |
| info | DebuggerHiding__Active | (no description) | memory |
| info | DebuggerHiding__Thread | (no description) | memory |
| info | disable_dep | Bypass DEP | memory |
| info | Is_DotNET_EXE | (no description) | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | PE_Header_Zero | PE File Signature | binaries (download) |
| info | PE_Header_Zero | PE File Signature | binaries (upload) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
Network (4cnts) ?
Suricata ids
ET MALWARE [SEKOIA.IO] Win32/Stealc C2 Check-in
ET MALWARE Win32/Stealc Requesting browsers Config from C2
ET MALWARE Win32/Stealc Requesting plugins Config from C2
ET MALWARE Win32/Stealc Submitting System Information to C2
ET INFO Dotted Quad Host DLL Request
ET HUNTING HTTP GET Request for sqlite3.dll - Possible Infostealer Activity
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET MALWARE Win32/Stealc Requesting browsers Config from C2
ET MALWARE Win32/Stealc Requesting plugins Config from C2
ET MALWARE Win32/Stealc Submitting System Information to C2
ET INFO Dotted Quad Host DLL Request
ET HUNTING HTTP GET Request for sqlite3.dll - Possible Infostealer Activity
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
PE API
IAT(Import Address Table) Library
mscoree.dll
0x402000 _CorExeMain
EAT(Export Address Table) is none
mscoree.dll
0x402000 _CorExeMain
EAT(Export Address Table) is none