ScreenShot
| Created | 2023.11.01 19:37 | Machine | s1_win7_x6401 |
| Filename | Biacs.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
|
| ZERO API | file : clean | ||
| VT API (file) | 30 detected (Marsilia, Artemis, V2ff, Attribute, HighConfidence, malicious, high confidence, score, CLOUD, ai score=82, Wacatac, ZemsilF, em0@aSswu0l, unsafe, susgen, PWSX, confidence, 100%) | ||
| md5 | 8bbba1d1448825a0c428dc296573cf8d | ||
| sha256 | b188344a58c4dfd482b417ffbc27fbc2b2d72b672653060f2fe33e86102c31f8 | ||
| ssdeep | 1536:DKCCVE7xYFCQmUl9XxUGPsisuHzrC37wi8MqK+ig:DCiK9XxUGPsisuHzrC37wi8MqNf | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (22cnts)
| Level | Description |
|---|---|
| danger | Executed a process and injected code into it |
| danger | File has been identified by 30 AntiVirus engines on VirusTotal as malicious |
| watch | A process attempted to delay the analysis task. |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Code injection by writing an executable or DLL to the memory of another process |
| watch | Communicates with host for which no DNS query was performed |
| 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 | 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 | 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 | Yara rule detected in process memory |
| info | Checks amount of memory in system |
| info | Checks if process is being debugged by a debugger |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (10cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| 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 |
Network (45cnts) ?
Suricata ids
ET INFO Executable Download from dotted-quad Host
ET INFO Packed Executable Download
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET DNS Query to a *.top domain - Likely Hostile
ET INFO Dotted Quad Host PDF Request
SURICATA HTTP unable to match response to request
ET INFO HTTP Request to a *.top domain
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 INFO Packed Executable Download
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download
ET HUNTING SUSPICIOUS Dotted Quad Host MZ Response
ET DNS Query to a *.top domain - Likely Hostile
ET INFO Dotted Quad Host PDF Request
SURICATA HTTP unable to match response to request
ET INFO HTTP Request to a *.top domain
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) Library
mscoree.dll
0x403d84 _CorExeMain
EAT(Export Address Table) is none
mscoree.dll
0x403d84 _CorExeMain
EAT(Export Address Table) is none