General

  • Target
    6f21af48a7e2922e52a5bc611aa09fdf90168e4467f65e03d56d6df238895c0f.bin
  • Size 67KB
  • Sample260903-nej7yagh73
  • SHA256 6f21af48a7e2922e52a5bc611aa09fdf90168e4467f65e03d56d6df238895c0f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/H3wFXmEi

Targets

    • Target
      6f21af48a7e2922e52a5bc611aa09fdf90168e4467f65e03d56d6df238895c0f.bin
    • Size 67KB
    • SHA256 6f21af48a7e2922e52a5bc611aa09fdf90168e4467f65e03d56d6df238895c0f
    • 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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • 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