General

  • Target

    FireFox (2).rar

  • Size

    38KB

  • Sample

    250123-wp5kmazlcm

  • MD5

    fbb13804f3829473e1d1b4ae9a8adaac

  • SHA1

    3f6af28fd3da62b79abf154c1c182c5985ed1ac2

  • SHA256

    837894140f7f6c20d9221e75fbe1a79487cd75c88cbe431d6be59768bd260bee

  • SHA512

    e5caa9d376823333788db78a7565d55a19ee06e67ab39b5512a441cf03de5a5621bb9d2a2f1a861541e67a7322872feb08effc2d00d5a786538e8d6573774882

  • SSDEEP

    768:KNLlgH+iCvyX723Spn9kZz1gykuTuv5/Rv2RiT0pN/XuDtjT+F2csj6NdM:KLJFvu72snoSy5TuVRe/gjTcMd

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:28938

so-trek.gl.at.ply.gg:28938

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Targets

    • Target

      Новая папка/XClient.exe

    • Size

      67KB

    • MD5

      458fc75c3b43867c903245c1ff29c63f

    • SHA1

      4446615c7243be34fb42cc2802e058b1892cd9ff

    • SHA256

      e0d646da20559f3df3811c79cc8b950dfffc1513e3234103bc73570565c81299

    • SHA512

      b0fca40b458fd455ee89076d645e9b3eb4e6d7c865c208e7b61f336af2e6a3ce0430429bc80a79b5cc09ad73d91a1628afbeeea4dfd8197ccfedb8aa803099e2

    • SSDEEP

      1536:+zYQJe2zPnanMmhbJBc2I4bx6i8O1vkYKZxEC6f:AYOeDnDbJi/O18Yax1m

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • 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

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks