General

  • Target

    https://github.com/SebDevAO/PlainX-Crypter-FUD/releases/tag/1.0.1

  • Sample

    250208-llppwsxlcv

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

WcpxqjjxSrB6UOUw

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • pastebin_url

    https://pastebin.com/raw/RPPi3ByL

  • telegram

    https://api.telegram.org/bot7483240807:AAHWuUBi6sW9ZOb0kfXVbzbMVyLtPj-9vZY/sendMessage?chat_id=5279018187

aes.plain
aes.plain
aes.plain

Extracted

Family

stealerium

C2

https://api.telegram.org/bot7204924753:AAFaqmmBR9ybp4-iE8BA2YCiFNUbOEd0Ljk/sendMessage?chat_id=

Attributes

Targets

    • Target

      https://github.com/SebDevAO/PlainX-Crypter-FUD/releases/tag/1.0.1

    • Detect Xworm Payload

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • Stealerium family

    • 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.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks