General

  • Target
    crack.exe
  • Size 1.1MB
  • Sample260331-1qd7aahx5v
  • SHA256 d00b7ea45637e30a68d647dcb2a13824a6a7a73f2f8f4aa936a1b79b68e87575
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Attributes
  • encryption_key

    B61F024C8032801014074779CA177D6373931705

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 193.233.19.233:1177

Mutex
  • P4kRTJiII9Mw10cS

Attributes
  • Install_directory

    %AppData%

  • install_file

    XWormClient.exe

  • telegram

    https://api.telegram.org/bot8533254274:AAEHVKvAa78HjTJVDtEibgCMvn7XDrFPwWc/sendMessage?chat_id=6921410128

aes.plain

Targets

    • Target
      crack.exe
    • Size 1.1MB
    • SHA256 d00b7ea45637e30a68d647dcb2a13824a6a7a73f2f8f4aa936a1b79b68e87575
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Detects MilleniumRAT stealer

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

    • Milleniumrat family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Drops startup file

    • 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

    • 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.

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks