ScreenShot
| Created | 2025.03.13 10:02 | Machine | s1_win7_x6401 |
| Filename | MUK.ps1 | ||
| Type | ASCII text, with very long lines, with CRLF line terminators | ||
| AI Score | Not founds | Behavior Score |
|
| ZERO API | file : malware | ||
| VT API (file) | 12 detected (Countermeasure, DotNetToJScript, Krypt, Attribute, HighConfidence, Zapchast, PSDrop, Detected, Wacatac, Encpe) | ||
| md5 | 50955e71d07cd14cee26f5d7d8d35fbc | ||
| sha256 | 99638548506568949f57638461b2835b203149456ebd6c1cf383cf3d9c0bd358 | ||
| ssdeep | 1536:WLebwaNKvtq/TAokXiW2QbEtvKjCcaI+itoGmBR:hwa9M2QbEtvKjCcaI+itoGK | ||
| imphash | |||
| impfuzzy | |||
Network IP location
Signature (21cnts)
| Level | Description |
|---|---|
| danger | The process powershell.exe wrote an executable file to disk which it then attempted to execute |
| danger | Executed a process and injected code into it |
| watch | Allocates execute permission to another process indicative of possible code injection |
| watch | Communicates with host for which no DNS query was performed |
| watch | Drops a binary and executes it |
| watch | File has been identified by 12 AntiVirus engines on VirusTotal as malicious |
| watch | One or more non-whitelisted processes were created |
| watch | One or more of the buffers contains an embedded PE file |
| 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 | Creates executable files on the filesystem |
| notice | Drops an executable to the user AppData folder |
| 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 | Yara rule detected in process memory |
| info | Checks amount of memory in system |
| info | Checks if process is being debugged by a debugger |
Rules (22cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| warning | hide_executable_file | Hide executable file | binaries (upload) |
| watch | Antivirus | Contains references to security software | binaries (download) |
| watch | ConfuserEx_Zero | Confuser .NET | binaries (download) |
| watch | Malicious_Library_Zero | Malicious_Library | binaries (download) |
| watch | Network_Downloader | File Downloader | memory |
| notice | Code_injection | Code injection with CreateRemoteThread in a remote process | memory |
| notice | ScreenShot | Take ScreenShot | memory |
| notice | Str_Win32_Internet_API | Match Windows Inet API call | 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_DLL | (no description) | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (download) |
| info | IsDLL | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (download) |
| info | PE_Header_Zero | PE File Signature | binaries (download) |
| info | SEH__vectored | (no description) | memory |
| info | ThreadControl__Context | (no description) | memory |
Network (6cnts) ?
Suricata ids
ET JA3 Hash - Remcos 3.x/4.x TLS Connection
ET INFO Executable Download from dotted-quad Host
ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
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 INFO Executable Download from dotted-quad Host
ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
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