General

  • Target
    09112026_1105_08112026_26_1108_US_MIX_FULLZ_LIVE40%.txt⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀.lnk.zip
  • Size 1KB
  • Sample261109-m7a93abv2q
  • SHA256 d64dce251e81c973b50665c74720da4b25ae9d2a6c05fec32a2d895293793a4d
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://github.com/denoland/deno/releases/latest/download/deno-x86_64-pc-windows-msvc.zip

  • exe.dropper

    https://www-go.cfd/d/9dcea45b3c77

  • exe.dropper

    https://deno.land/install.ps1

Extracted

Family
  • quasar

Attributes
  • encryption_key

    7AA5271FAD1466F20E9D29E6A3CDF1FF2677791A

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Targets

    • Target
      26_1108_US_MIX_FULLZ_LIVE40%.txt⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀.lnk
    • Size 17KB
    • SHA256 e3abb0e070582f3d43091875eb212b6e89281e3bab45093fe5ff468aa4246a7e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

    • PulsaRAT library module

      Core component of the PulsaRAT remote access trojan, implementing its command protocol for hidden remote desktop, UAC bypass, persistence, and credential theft.

    • Quasar payload

    • 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.

    • 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.

    • 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.

MITRE ATT&CK Enterprise v16

Tasks