General

  • Target

    fixer for multitool.exe

  • Size

    62KB

  • Sample

    250120-y51bysxmgs

  • MD5

    77e7b58ce0b69353d9f95c9e682b6f6e

  • SHA1

    ba83c3c49a507a9c7b7eb3785fd71f4e1ef66f27

  • SHA256

    cde4fe473069363041f226b082f01df71b5f9ac35c29aa5d09629c927f810f60

  • SHA512

    ec6d834502999f93e68c31d4f27ea58ea8a7d0eaea71478ba7745b4f1b5651319fe650d5c430628221a57057be99836c8435fe2b1debed55b382067aa8d1d3b4

  • SSDEEP

    1536:M6EtTyVXBeRi6hm9bTedYcNO67OyO4+Sn+e:YVyHvKm9bTYlOyO4+e

Malware Config

Extracted

Family

xworm

C2

nipoto-62948.portmap.host:34564

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

  • telegram

    https://api.telegram.org/bot7704029346:AAHPre1lXQa0UfPCpOUXJZ9UXA9mFxvH4Gk/sendMessage?chat_id=7590668020

Targets

    • Target

      fixer for multitool.exe

    • Size

      62KB

    • MD5

      77e7b58ce0b69353d9f95c9e682b6f6e

    • SHA1

      ba83c3c49a507a9c7b7eb3785fd71f4e1ef66f27

    • SHA256

      cde4fe473069363041f226b082f01df71b5f9ac35c29aa5d09629c927f810f60

    • SHA512

      ec6d834502999f93e68c31d4f27ea58ea8a7d0eaea71478ba7745b4f1b5651319fe650d5c430628221a57057be99836c8435fe2b1debed55b382067aa8d1d3b4

    • SSDEEP

      1536:M6EtTyVXBeRi6hm9bTedYcNO67OyO4+Sn+e:YVyHvKm9bTYlOyO4+e

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks