Overview

overview

10

Static

static

1

output.bat

windows10-2004-x64

10

output.bat

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    output.bat
  • Size 4.5MB
  • Sample260804-srvlnatbqb
  • SHA256 6b02104091480bffc4d13c29032cfbb88893f3658669e3477e39c9cf51309546
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04defense_evasionexecutionspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • xxxxxxxxxxxxx1.localto.net:6155

Mutex

  • b4e6b30f-9ca8-4cbf-95c6-796eaf2b5f7a

Attributes
  • encryption_key

    9AB3C8E4FBD91315175F3A5B7282BF3024F7F5D9

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      output.bat
    • Size 4.5MB
    • SHA256 6b02104091480bffc4d13c29032cfbb88893f3658669e3477e39c9cf51309546
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04defense_evasionexecutionquasarspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks