General

  • Target
    1cff0c1c7c34dadda81cfadab09200e7b26e2f47fec06e699d33cca52871f88d.bin
  • Size 76KB
  • Sample260804-k9drvsssez
  • SHA256 1cff0c1c7c34dadda81cfadab09200e7b26e2f47fec06e699d33cca52871f88d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

C2
  • https://jquery-api.neocities.org/hi.txt:666666666

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    $77windriver.exe

Targets

    • Target
      1cff0c1c7c34dadda81cfadab09200e7b26e2f47fec06e699d33cca52871f88d.bin
    • Size 76KB
    • SHA256 1cff0c1c7c34dadda81cfadab09200e7b26e2f47fec06e699d33cca52871f88d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • 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

    • 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.

MITRE ATT&CK Enterprise v16

Tasks