General

  • Target

    a307d64f791cb555d029c214364162d8.bin

  • Size

    46KB

  • Sample

    241119-by1mtatlhl

  • MD5

    8f1cc828194704c7fab17df0779e3984

  • SHA1

    34e0b9f3273bd696ed4e2e177571af5260717848

  • SHA256

    de5f9d738a8be7790dd3f03e6ed537e40ffe83fe7a368826dc4ad6106b63a929

  • SHA512

    1b5e67a0878a70a0f45e7f7f041769699c747628a624c39bf424f308872381e962a688d520bde8b887befc7f1cf6fd086e08e05ea27ed4a67df9c35820af692b

  • SSDEEP

    768:tefHYX2fKF++Unrzzh7SpZ/73EbqukF0k78aDbYzvtlNAUX75CNun+:AvYXjFUzh879uDk7BUrZ7Kx

Malware Config

Extracted

Family

xworm

C2

left-noon.gl.at.ply.gg:60705

Attributes
  • Install_directory

    %AppData%

  • install_file

    US11B.exe

Targets

    • Target

      c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

    • Size

      77KB

    • MD5

      a307d64f791cb555d029c214364162d8

    • SHA1

      04f134fd1a0b71e0b4b745a97e9a08ed1ee45c74

    • SHA256

      c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454

    • SHA512

      d432bcf7874ea3f74ec7e4fc51b400f7c3492b06479fd12949b7cde698e513bbabd08afae8d0ffc2efbe3d7d0cb44e08c5b2bba3f116b9fd6120713e2cd5f96e

    • SSDEEP

      1536:x5sFO8g/9VM5dQ+aomobhr3KXg6wzOB1SmOnU7Ua+G:x5sU9Vv4bbhr6SOB1S5nU7MG

    • 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

    • 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