ScreenShot
| Created | 2023.04.04 17:20 | Machine | s1_win7_x6403 |
| Filename | vbc.exe | ||
| Type | PE32+ executable (GUI) x86-64 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) | 36 detected (Tedy, Artemis, GenKryptik, malicious, confidence, 100%, high confidence, GIEH, score, Noon, PWSX, BadNetLdr, pudcq, Casdet, Detected, ai score=82, unsafe, R002H0DD323, Krypt) | ||
| md5 | 8b817b79a103307dcd00a353e6bc13ac | ||
| sha256 | db1bb8073aee3e305bb82057150fc2ffba8b4a9e744b9635a75625618935b6fd | ||
| ssdeep | 12288:vRqBDDAGkC0fP1QG7rVtzRHmApSBvSdK+OyxesV07YkWd56Q5XhnQLyhkwL0jiCP:0Pe/r1p3O2nvhLOiCMIWobWdwxl0 | ||
| imphash | |||
| impfuzzy | 3:: | ||
Network IP location
Signature (20cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| danger | File has been identified by 36 AntiVirus engines on VirusTotal as malicious |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Communicates with host for which no DNS query was performed |
| watch | One or more of the buffers contains an embedded PE file |
| watch | Resumed a suspended thread in a remote process potentially indicative of process injection |
| notice | Allocates read-write-execute memory (usually to unpack itself) |
| notice | Checks for the Locally Unique Identifier on the system for a suspicious privilege |
| 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 | Resolves a suspicious Top Level Domain (TLD) |
| notice | Sends data using the HTTP POST Method |
| notice | Terminates another process |
| 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 | Collects information to fingerprint the system (MachineGuid |
| info | This executable has a PDB path |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (11cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| watch | UPX_Zero | UPX packed file | binaries (upload) |
| 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 | IsPE64 | (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_Backdoor_AsyncRAT_Zero | Win Backdoor AsyncRAT | binaries (upload) |
Network (22cnts) ?
Suricata ids
ET INFO HTTP Request to a *.top domain
ET MALWARE FormBook CnC Checkin (POST) M2
ET DNS Query to a *.top domain - Likely Hostile
ET MALWARE FormBook CnC Checkin (GET)
ET HUNTING Request to .XYZ Domain with Minimal Headers
ET HUNTING Request to .TOP Domain with Minimal Headers
ET MALWARE FormBook CnC Checkin (POST) M2
ET DNS Query to a *.top domain - Likely Hostile
ET MALWARE FormBook CnC Checkin (GET)
ET HUNTING Request to .XYZ Domain with Minimal Headers
ET HUNTING Request to .TOP Domain with Minimal Headers
PE API
IAT(Import Address Table) is none
EAT(Export Address Table) is none
EAT(Export Address Table) is none