General

  • Target

    aac2bb6ed014b4e73f263b69d11ccc37fa1b94cfccacbfacc564fcead1bc9340

  • Size

    190KB

  • Sample

    250124-wbn1qazmex

  • MD5

    180735cd524d00759a5f261123a6c0d0

  • SHA1

    cdb05596dd091c51525e573fb061ef15bfd9ae83

  • SHA256

    aac2bb6ed014b4e73f263b69d11ccc37fa1b94cfccacbfacc564fcead1bc9340

  • SHA512

    9fdd5fe3dd1a01f20e524138aa4b4d2daca206d666b4978a5bf73538d0810edee81b353decbdc5fa534870c68ff5d05e8bbe9f1fec8bf6ffff6125a1dc46cf5f

  • SSDEEP

    3072:l/Wr3qjGBaMWrmS24qBZDhAxPWUMWkZoGv/rFVHvTQINontDme41OOjluUnd2bzD:l/ckr6HBZDONv1jmHHvHNonlm+OZBe

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7777

Mutex

tEPO2T8ayqFvBb4T

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Targets

    • Target

      aac2bb6ed014b4e73f263b69d11ccc37fa1b94cfccacbfacc564fcead1bc9340

    • Size

      190KB

    • MD5

      180735cd524d00759a5f261123a6c0d0

    • SHA1

      cdb05596dd091c51525e573fb061ef15bfd9ae83

    • SHA256

      aac2bb6ed014b4e73f263b69d11ccc37fa1b94cfccacbfacc564fcead1bc9340

    • SHA512

      9fdd5fe3dd1a01f20e524138aa4b4d2daca206d666b4978a5bf73538d0810edee81b353decbdc5fa534870c68ff5d05e8bbe9f1fec8bf6ffff6125a1dc46cf5f

    • SSDEEP

      3072:l/Wr3qjGBaMWrmS24qBZDhAxPWUMWkZoGv/rFVHvTQINontDme41OOjluUnd2bzD:l/ckr6HBZDONv1jmHHvHNonlm+OZBe

    • 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

    • Loads dropped DLL

    • 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 v15

Tasks