ScreenShot
| Created | 2024.08.21 13:42 | Machine | s1_win7_x6403 |
| Filename | 66bb584acc7f2_stealc_default.vmp.exe | ||
| Type | PE32 executable (GUI) 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) | 61 detected (AIDetectMalware, NanoBot, malicious, high confidence, Stealc, Artemis, Unsafe, Kryptik, Vjoh, Attribute, HighConfidence, GenKryptik, HAOD, PWSX, Stelpak, Stealerc, kqwvcf, MSIL@AI, MSIL2, vD7PPnP4EOOBe0cUMU9uIA, xvddw, PRIVATELOADER, YXEHNZ, Real Protect, Static AI, Malicious PE, Detected, ai score=82, Wacatac, Eldorado, ZemsilF, mm0@aqOSxbb, TScope, Krypt, Chgt, susgen, confidence, 100%, GMH2XJC) | ||
| md5 | 769696b4d235e0184c2c8099e39b2394 | ||
| sha256 | e15d6cb16c10e5b195706f648749001c448ddb7d585576023c66e0aa5be319c0 | ||
| ssdeep | 3072:khF/AxZMqR1akvFDXDKAxqrAwFLImCMgVdJiQE1zAUGSPfl5LH0oIWgp:oI461asjeSHwrsdJi1MQtmJWg | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (32cnts)
| Level | Description |
|---|---|
| danger | File has been identified by 61 AntiVirus engines on VirusTotal as malicious |
| danger | Executed a process and injected code into it |
| 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 email clients |
| watch | Harvests credentials from local FTP client softwares |
| watch | Looks for the Windows Idle Time to determine the uptime |
| 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 | Creates executable files on the filesystem |
| 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 | Steals private information from local Internet browsers |
| notice | The binary likely contains encrypted or compressed data indicative of a packer |
| 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 (27cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Client_SW_User_Data_Stealer | Client_SW_User_Data_Stealer | memory |
| danger | Win32_Trojan_Gen_1_0904B0_Zero | Win32 Trojan Emotet | binaries (download) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | infoStealer_ftpClients_Zero | ftp clients info stealer | memory |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (upload) |
| watch | Malicious_Packer_Zero | Malicious Packer | binaries (download) |
| watch | UPX_Zero | UPX packed file | binaries (download) |
| watch | Win32_Trojan_PWS_Net_1_Zero | Win32 Trojan PWS .NET Azorult | 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 (upload) |
| info | IsDLL | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | OS_Processor_Check_Zero | OS Processor Check | binaries (download) |
| 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 (12cnts) ?
Suricata ids
ET MALWARE [SEKOIA.IO] Win32/Stealc C2 Check-in
ET MALWARE Win32/Stealc Requesting browsers Config from C2
ET MALWARE Win32/Stealc Active C2 Responding with browsers Config M1
ET MALWARE Win32/Stealc Requesting plugins Config from C2
ET MALWARE Win32/Stealc/Vidar Stealer Active C2 Responding with plugins Config M1
ET INFO Dotted Quad Host DLL Request
ET HUNTING HTTP GET Request for freebl3.dll - Possible Infostealer Activity
ET MALWARE Win32/Stealc Submitting System Information to C2
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 INFO TLS Handshake Failure
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET HUNTING HTTP GET Request for mozglue.dll - Possible Infostealer Activity
ET HUNTING HTTP GET Request for nss3.dll - Possible Infostealer Activity
ET HUNTING HTTP GET Request for softokn3.dll - Possible Infostealer Activity
ET HUNTING HTTP GET Request for vcruntime140.dll - Possible Infostealer Activity
ET MALWARE Win32/Stealc Requesting browsers Config from C2
ET MALWARE Win32/Stealc Active C2 Responding with browsers Config M1
ET MALWARE Win32/Stealc Requesting plugins Config from C2
ET MALWARE Win32/Stealc/Vidar Stealer Active C2 Responding with plugins Config M1
ET INFO Dotted Quad Host DLL Request
ET HUNTING HTTP GET Request for freebl3.dll - Possible Infostealer Activity
ET MALWARE Win32/Stealc Submitting System Information to C2
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 INFO TLS Handshake Failure
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET HUNTING HTTP GET Request for mozglue.dll - Possible Infostealer Activity
ET HUNTING HTTP GET Request for nss3.dll - Possible Infostealer Activity
ET HUNTING HTTP GET Request for softokn3.dll - Possible Infostealer Activity
ET HUNTING HTTP GET Request for vcruntime140.dll - Possible Infostealer Activity
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