General

  • Target

    XCliesnt.exe

  • Size

    43KB

  • Sample

    240715-3xlaaayalh

  • MD5

    ef7bbfcdd3e9fb5e5ba7c567cfe7fc6c

  • SHA1

    4621bfc54dbff13c60de87008087aa787aa940ce

  • SHA256

    a9059e5dd9e4b54be722da461c46a83c92c8be0b15faf38396c1954b5fa96b39

  • SHA512

    60ab3599c34fb5d95d203a4b20039de87a4560fa085d1073a0d10ee08cfd9d9d02c498ec61bce98288c804d95e938af54af00fa8c5fc2e3141214246e15a4fc6

  • SSDEEP

    768:7X1qj4zpgLPg99okX2jhM6Lc+F+w9O5eoPR68O+hmbWLV7:7lq8zpgjgr5X2j3JFP9ieeR68O+0Wd

Malware Config

Extracted

Family

xworm

Version

5.0

C2

86.160.77.154:7000

0x20Be82eDe1D3001d450d10ef6944eC28a0682F4f:1

Mutex

DbHMnXSUFhmbwYrL

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Targets

    • Target

      XCliesnt.exe

    • Size

      43KB

    • MD5

      ef7bbfcdd3e9fb5e5ba7c567cfe7fc6c

    • SHA1

      4621bfc54dbff13c60de87008087aa787aa940ce

    • SHA256

      a9059e5dd9e4b54be722da461c46a83c92c8be0b15faf38396c1954b5fa96b39

    • SHA512

      60ab3599c34fb5d95d203a4b20039de87a4560fa085d1073a0d10ee08cfd9d9d02c498ec61bce98288c804d95e938af54af00fa8c5fc2e3141214246e15a4fc6

    • SSDEEP

      768:7X1qj4zpgLPg99okX2jhM6Lc+F+w9O5eoPR68O+hmbWLV7:7lq8zpgjgr5X2j3JFP9ieeR68O+0Wd

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • Modifies Windows Defender Real-time Protection settings

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • 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.

    • Modifies Windows Firewall

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Looks up external IP address via web service

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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks