General

  • Target

    https://www.dropbox.com/scl/fi/67epyl2uw2x9t8y93bkch/Unlock_Tool.zip?rlkey=g0dmjtoajve5wofhntuxo673o&st=ibvvsshl&dl=1

  • Sample

    241114-sgr3savjep

Malware Config

Extracted

Family

vidar

Version

11.7

Botnet

4b05932e298d86a233eec0514ef2c4f6

C2

https://t.me/m07mbk

https://steamcommunity.com/profiles/76561199801589826

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Targets

    • Target

      https://www.dropbox.com/scl/fi/67epyl2uw2x9t8y93bkch/Unlock_Tool.zip?rlkey=g0dmjtoajve5wofhntuxo673o&st=ibvvsshl&dl=1

    • Detect Vidar Stealer

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Enumerates connected drives

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

    • Checks system information in the registry

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks