General

  • Target

    https://example.com

  • Sample

    250125-xzjxcaynan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

next-screening.at.ply.gg:48590

Attributes
  • Install_directory

    %AppData%

  • install_file

    chrome.exe

Extracted

Family

xworm

Version

5.0

Mutex

jrutcxTxqD08SKSB

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    OneDrive.exe

  • pastebin_url

    https://pastebin.com/raw/RPPi3ByL

aes.plain
aes.plain
aes.plain

Targets

    • Detect Xworm Payload

    • Orcus

      Orcus is a Remote Access Trojan that is being sold on underground forums.

    • Orcus family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Orcurs Rat Executable

    • 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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • 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

    • Probable phishing domain

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks