General

  • Target
    Main2.bat
  • Size 330KB
  • Sample241230-bas8tssmay
  • SHA256 18c32243fd2aca0cd2bf68b5988e5133e99909fd64134ee88ee0ba0be0f6ab52
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      Main2.bat
    • Size 330KB
    • SHA256 18c32243fd2aca0cd2bf68b5988e5133e99909fd64134ee88ee0ba0be0f6ab52
    • MD5 SHA1 SHA512 SSDEEP
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • Modifies Windows Defender Real-time Protection settings

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

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

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks