ScreenShot
| Created | 2023.01.28 23:31 | Machine | s1_win7_x6401 |
| Filename | vbc.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | |||
| VT API (file) | 44 detected (AIDetectNet, malicious, high confidence, GenericKD, Artemis, Unsafe, Lazy, Save, ZemsilF, Jm2@au0HYSh, Eldorado, Attribute, HighConfidence, score, Noon, jumalz, InjectorX, DownLoader45, R002C0PAR23, Generic PWS, Static AI, Suspicious PE, SnakeStealer, npjhv, Sabsik, Casdet, Snake, FV1ZWA, Detected, R532512, zgRAT, ai score=80, CLOUD, Outbreak) | ||
| md5 | a20e0dd924d55a1e0b8b403b39b52f34 | ||
| sha256 | 2c0040dfc6eef6371e00934559c481012e35a651d9d1e816f103b98a7af05749 | ||
| ssdeep | 12288:muKB66jJmpLTZlxEEUTvMvFc+Tmphj1v/YKshecL0yraL8:jLTZLBUTvM9cPhjyheU0fL8 | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (27cnts)
| Level | Description |
|---|---|
| danger | File has been identified by 44 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 | Attempts to identify installed AV products by installation directory |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Harvests credentials from local email clients |
| watch | Harvests credentials from local FTP client softwares |
| watch | Harvests information related to installed instant messenger clients |
| 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 | Allocates read-write-execute memory (usually to unpack itself) |
| notice | Checks adapter addresses which can be used to detect virtual network interfaces |
| notice | Checks for the Locally Unique Identifier on the system for a suspicious privilege |
| notice | Connects to a Dynamic DNS Domain |
| notice | Looks up the external IP address |
| notice | One or more potentially interesting buffers were extracted |
| notice | Performs some HTTP requests |
| 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 | One or more processes crashed |
| info | Queries for the computername |
| info | This executable has a PDB path |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (17cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| watch | ConfuserEx_Zero | Confuser .NET | binaries (upload) |
| notice | Generic_PWS_Memory_Zero | PWS Memory | memory |
| notice | KeyLogger | Run a KeyLogger | memory |
| notice | Network_SMTP_dotNet | Communications smtp | memory |
| info | anti_dbg | Checks if being debugged | memory |
| info | DebuggerCheck__GlobalFlags | (no description) | memory |
| info | DebuggerCheck__QueryInfo | (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 | IsPE32 | (no description) | binaries (upload) |
| info | PE_Header_Zero | PE File Signature | binaries (upload) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
| info | win_hook | Affect hook table | memory |
| info | Win_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
Suricata ids
ET INFO DYNAMIC_DNS Query to a *.dyndns .org Domain
ET INFO DYNAMIC_DNS Query to *.dyndns. Domain
ET MALWARE 404/Snake/Matiex Keylogger Style External IP Check
ET POLICY External IP Lookup - checkip.dyndns.org
ET INFO DYNAMIC_DNS HTTP Request to a *.dyndns .org Domain
ET INFO DYNAMIC_DNS Query to *.dyndns. Domain
ET MALWARE 404/Snake/Matiex Keylogger Style External IP Check
ET POLICY External IP Lookup - checkip.dyndns.org
ET INFO DYNAMIC_DNS HTTP Request to a *.dyndns .org Domain
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