ScreenShot
| Created | 2024.04.03 07:40 | Machine | s1_win7_x6401 |
| Filename | njhor.exe | ||
| Type | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows | ||
| AI Score |
|
Behavior Score |
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| ZERO API | file : mailcious | ||
| VT API (file) | |||
| md5 | 20d4f344fa2a4ad4cb48d90abfbab41f | ||
| sha256 | 8c3b889f84864da05897622f9e90a1a860d9587296ae37daba5bf0394a5283fe | ||
| ssdeep | 3072:p/W1v3s+XvNby4I81B3pmL49sO13ENzB6dZ4ydThn6Yb4reE8xdoY92XF:p/uxXHZhswENB6k8v4rv87r921 | ||
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 | ||
| impfuzzy | 3:rGsLdAIEK:tf | ||
Network IP location
Signature (24cnts)
| Level | Description |
|---|---|
| danger | Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually) |
| danger | Executed a process and injected code into it |
| warning | Disables Windows Security features |
| watch | A process attempted to delay the analysis task. |
| watch | Attempts to stop active services |
| watch | Looks for the Windows Idle Time to determine the uptime |
| watch | Potential code injection by writing to the memory of another process |
| watch | The process powershell.exe wrote an executable file to disk |
| 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 | Creates a shortcut to an executable file |
| notice | Creates a suspicious process |
| notice | Creates executable files on the filesystem |
| notice | Drops a binary and executes it |
| notice | Drops an executable to the user AppData folder |
| notice | HTTP traffic contains suspicious features which may be indicative of malware related traffic |
| notice | Performs some HTTP requests |
| notice | Uses Windows utilities for basic Windows functionality |
| 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 | The executable contains unknown PE section names indicative of a packer (could be a false positive) |
| info | Uses Windows APIs to generate a cryptographic key |
Rules (11cnts)
| Level | Name | Description | Collection |
|---|---|---|---|
| danger | Win_Backdoor_njRAT_Zero | Win Backdoor njRAT | binaries (download) |
| danger | Win_Backdoor_njRAT_Zero | Win Backdoor njRAT | binaries (upload) |
| warning | Generic_Malware_Zero | Generic Malware | binaries (download) |
| watch | Antivirus | Contains references to security software | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (download) |
| info | Is_DotNET_EXE | (no description) | binaries (upload) |
| info | IsPE32 | (no description) | binaries (download) |
| info | IsPE32 | (no description) | binaries (upload) |
| info | PE_Header_Zero | PE File Signature | binaries (download) |
| info | PE_Header_Zero | PE File Signature | binaries (upload) |
| info | PowerShell | PowerShell script | scripts |
Network (6cnts) ?
Suricata ids
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
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