Resubmissions

11-08-2024 17:41

240811-v9en9sthpe 10

11-08-2024 17:38

240811-v7raaazcqq 10

28-07-2024 15:36

240728-s154ravdqg 10

23-07-2024 17:57

240723-wjy6navcle 10

23-07-2024 12:45

240723-py1vgazgkq 10

General

  • Target

    X.exe

  • Size

    63KB

  • Sample

    240723-py1vgazgkq

  • MD5

    f16a3a537f873f3e7bd334d6cf93c525

  • SHA1

    4fbedba1adbeda56019534b1bf74ff47ed814e61

  • SHA256

    ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508

  • SHA512

    032ec3782acaa2d21b24b8aae659e2bede424e594fee00aafbcf66840a8fd048fceae7ef2a8ad449a38590041d241c7edd1c219e9b5ffb3b5e8993a01ba4011a

  • SSDEEP

    1536:zDJ1KwwGadRqckbTz0hdOWwdx6mf6ZOTLGuJi:p14GURjkbTnWvOTJJi

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7787

92.43.187.26:7787

Attributes
  • Install_directory

    %Temp%

  • install_file

    St.exe

Targets

    • Target

      X.exe

    • Size

      63KB

    • MD5

      f16a3a537f873f3e7bd334d6cf93c525

    • SHA1

      4fbedba1adbeda56019534b1bf74ff47ed814e61

    • SHA256

      ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508

    • SHA512

      032ec3782acaa2d21b24b8aae659e2bede424e594fee00aafbcf66840a8fd048fceae7ef2a8ad449a38590041d241c7edd1c219e9b5ffb3b5e8993a01ba4011a

    • SSDEEP

      1536:zDJ1KwwGadRqckbTz0hdOWwdx6mf6ZOTLGuJi:p14GURjkbTnWvOTJJi

    • 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

    • 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.

    • Disables Task Manager via registry modification

    • 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.

    • Uses the VBS compiler for execution

    • 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