General

  • Target
    PO(S4674 Flow 1 2) - -EJ2152 - 2025.9.25.rar
  • Size 1.5MB
  • Sample250925-qml3lsal3x
  • SHA256 4cc032e33eb281b2fcac95d224c0f8cb37217cb7da66163963af032de1e3f91a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Version
  • 7.0.4 Pro

Targets

    • Target
      08-009-TA-9036&37AWAJI.pdf
    • Size 534KB
    • SHA256 6a8dd48130e893ca6f9de2b880ed9d889fe4b261ebc8bb9fcbfd22026c7722d9
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      SEPTMER ORDER HGH-PO25012 - PTWH SMS EL49.scr
    • Size 1.1MB
    • SHA256 242418928ee50cd9d4c70bddf5b9434ee65244aa46376f123f1c59359c281eaa
    • MD5 SHA1 SHA512 SSDEEP
    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Remcos family

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks