General

  • Target

    Steam.exe

  • Size

    333KB

  • Sample

    241231-wqn92avlcl

  • MD5

    b15941b7edb0a49db4c1a58c9ee1019d

  • SHA1

    179f337350d990e4329f3700d65fbecadcc9e326

  • SHA256

    77047b904717fdd6f280cb57d5707c35a9d4ff6e85087b2e19e5965cd1dd2967

  • SHA512

    bee9e86cf7f9a97fbb489b695f259b23f1242621a39d3461a7967b2e37cf00c2eae2d4f94b3c108dd12e530bca24d90b377a4a4f62f4dae855fc9f285b4b6464

  • SSDEEP

    6144:PwMbfBGh7p+Y+GIIIIIIIhIIIIIIIIIIIIIIIU:PwbQ7

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:4546

photos-perth.gl.at.ply.gg 127.0.0.1:4546:4546

Attributes
  • Install_directory

    %AppData%

  • install_file

    svhost.exe

Targets

    • Target

      Steam.exe

    • Size

      333KB

    • MD5

      b15941b7edb0a49db4c1a58c9ee1019d

    • SHA1

      179f337350d990e4329f3700d65fbecadcc9e326

    • SHA256

      77047b904717fdd6f280cb57d5707c35a9d4ff6e85087b2e19e5965cd1dd2967

    • SHA512

      bee9e86cf7f9a97fbb489b695f259b23f1242621a39d3461a7967b2e37cf00c2eae2d4f94b3c108dd12e530bca24d90b377a4a4f62f4dae855fc9f285b4b6464

    • SSDEEP

      6144:PwMbfBGh7p+Y+GIIIIIIIhIIIIIIIIIIIIIIIU:PwbQ7

    • 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

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks