Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    Client-built.exe
  • Size 3.2MB
  • Sample251223-rtjfqsspbx
  • SHA256 2aeef6545efb7b271af6e284b6128a3d7031cf2bcafc782d7912d312bedbba01
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • wepay.in.net:4782

  • wepay.in.net:443

  • wepay.in.net:8843

  • wepay.in.net:8080

  • slotmachinesno.sa.com:8080

  • slotmachinesno.sa.com:443

  • slotmachinesno.sa.com:4782

  • slotmachinesno.sa.com:8843

  • digitalhari.in.net:8843

  • digitalhari.in.net:443

  • digitalhari.in.net:4782

  • digitalhari.in.net:8080

Mutex

  • 1037aa5e-4d7b-4e96-bd70-9a75bd845004

Attributes
  • encryption_key

    F116DDAE38E33B9D0D348291EF604EE1CEAE2461

  • install_name

    CFArea1HorizonPro.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Nexus CyberShield Service

  • subdirectory

    CloudflareHorizonPro

Targets

    • Target
      Client-built.exe
    • Size 3.2MB
    • SHA256 2aeef6545efb7b271af6e284b6128a3d7031cf2bcafc782d7912d312bedbba01
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks