Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

Client-built.exe

windows11-21h2-x64

Sharing

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample241015-btmkds1arr
  • SHA256 aa3170ce6b4bbd9960ac0ccd60f7d0b39cc0d28254bfe73545b540cbd8444b21
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • HomoThugger-36407.portmap.host:36407

Mutex

  • 42d6f4c0-e8fc-473a-b92d-ded3fb29334a

Attributes
  • encryption_key

    3CDA48FEB25557C87485A9F37CDC861398BEA3C7

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 aa3170ce6b4bbd9960ac0ccd60f7d0b39cc0d28254bfe73545b540cbd8444b21
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

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

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks