General

  • Target
    XWormV7.4.exe
  • Size 22.3MB
  • Sample261108-x88basez6s
  • SHA256 aeceb4c4ec4dd9c59f59c5555ef1cef1c1ae2e20d7f5eace03cf1a1dd7a18482
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

Mutex
  • jfRiePBMkeGz1NpO

Attributes
  • Install_directory

    %AppData%

  • install_file

    WindowsCore.exe

  • pastebin_url

    https://pastebin.com/raw/T8Uf4sUn

aes.plain
aes.plain

Extracted

Family
  • ratonrat

Version
  • Free

C2
  • 20.127.185.243:4444

Mutex
  • DvQYmMLqrhOJNK8XoKpC1Jm

Attributes
  • assist

    false

  • box

    false

  • box_icon

    No icon

  • box_msg

    Hello, i'm the description of your raton client message box

  • box_title

    Hello, im a title for your message box

  • defender

    false

  • delay

    0

  • hide_file

    true

  • open_website

    false

  • process_critical

    false

  • raw

    https://pastebin.com/raw/BN8zUVEu

  • reconnect

    3

  • startup

    true

  • tag

    ctfmon

  • uac

    false

  • vm

    false

  • website

    https://t.me/sillyisafed

Targets

    • Target
      XWormV7.4.exe
    • Size 22.3MB
    • SHA256 aeceb4c4ec4dd9c59f59c5555ef1cef1c1ae2e20d7f5eace03cf1a1dd7a18482
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Detects RatonRAT payload

    • Family: 751Stealer

      751 Stealer is a Windows infostealer distributed as a .NET 8 single-file bundle that grabs browser data, files, and crypto wallets.

    • Family: RatonRAT

      RatonRAT is an information stealer written in C#.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Looks for VirtualBox Guest Additions in registry

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Creates a file in the Startup directory

      A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

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

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

MITRE ATT&CK Enterprise v16

Tasks