General

  • Target

    183a5a6477a06e439c82b04421d4424f7fc69694780cae4a87278d367753598a.hta

  • Size

    11KB

  • Sample

    241017-bhzetatemf

  • MD5

    ea742132a205bf7b433598cb2a8fa3f5

  • SHA1

    43a79f227c20901143be107f6922740acc54cf29

  • SHA256

    183a5a6477a06e439c82b04421d4424f7fc69694780cae4a87278d367753598a

  • SHA512

    3983d17c65890c9e5d52a2a486b97a7e3ffa3d5a9a81d25739ac33cfc0db9d68647d202d0c845183b4e6f019be398e6f3a339204e8f64e87a73327fb1d2553c4

  • SSDEEP

    192:RxzslVZBh+kMufgTcPOGYhPE90KZEMx5DTmoRjtP/83anTnChFJkEFRhPSS:RWvMuYJOnTmoRtEKnTChISh6S

Malware Config

Extracted

Family

xworm

Version

3.1

C2

needforrat.hopto.org:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      183a5a6477a06e439c82b04421d4424f7fc69694780cae4a87278d367753598a.hta

    • Size

      11KB

    • MD5

      ea742132a205bf7b433598cb2a8fa3f5

    • SHA1

      43a79f227c20901143be107f6922740acc54cf29

    • SHA256

      183a5a6477a06e439c82b04421d4424f7fc69694780cae4a87278d367753598a

    • SHA512

      3983d17c65890c9e5d52a2a486b97a7e3ffa3d5a9a81d25739ac33cfc0db9d68647d202d0c845183b4e6f019be398e6f3a339204e8f64e87a73327fb1d2553c4

    • SSDEEP

      192:RxzslVZBh+kMufgTcPOGYhPE90KZEMx5DTmoRjtP/83anTnChFJkEFRhPSS:RWvMuYJOnTmoRtEKnTChISh6S

    • Detect Xworm Payload

    • UAC bypass

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • 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

MITRE ATT&CK Enterprise v15

Tasks