Overview

overview

10

Static

static

3

image.scr

windows10-2004-x64

10

image.scr

windows11-21h2-x64

10

Sharing

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General

  • Target
    image.scr
  • Size 1.5MB
  • Sample260406-vaej8ags4p
  • SHA256 a8fd12fc4ea1c343ec69b32ea8766936c21fa55933c4e04b0715832c16f08049
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 71.188.123.108:4782

Mutex

  • a13c0352-43f8-4648-9949-1455fe0209bc

Attributes
  • encryption_key

    3873395F0D38D252571338283D55D332D853286D

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      image.scr
    • Size 1.5MB
    • SHA256 a8fd12fc4ea1c343ec69b32ea8766936c21fa55933c4e04b0715832c16f08049
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks