General

  • Target
    fe5a0bfb5ade664a32f7328bfabf0ce82c37d0dddb97456044e9db8b94b597c3
  • Size 149KB
  • Sample260930-b3kr6assht
  • SHA256 fe5a0bfb5ade664a32f7328bfabf0ce82c37d0dddb97456044e9db8b94b597c3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • siriusrat

C2
  • 31.40.204.71:9876

Targets

    • Target
      INVOICE_2026_08.vbs
    • Size 4.9MB
    • SHA256 7f3ee0a4f9fbbbf7bf916021e4b189e22e28b7ca66ccfbac8ad297ff3e8e840d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Detects SiriusRAT

    • Family: SiriusRAT

      SiriusRAT is a Windows RAT written in C++ with HVNC, offline keylogging, and remote desktop capabilities.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Accesses Microsoft Outlook profiles

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Executes a VBScript file via the Windows Script Host.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks