Overview

overview

10

Static

static

10

Boosttrapper.exe

windows10-2004-x64

10

Boosttrapper.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Boosttrapper.exe
  • Size 3.1MB
  • Sample260727-btr5watgjb
  • SHA256 ef51078ef01bd646ecd4f817d1a20ef180a2242194c3a6ba1d168285281228e0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.1.2:4782

Mutex

  • e62ef7b9-e319-4264-b7a4-c86d47950118

Attributes
  • encryption_key

    97F7A2709273F6470AAD17567B820BF3413C7766

  • install_name

    Boosttrapper.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Service Host: SystemServer

  • subdirectory

    Microsoft

Targets

    • Target
      Boosttrapper.exe
    • Size 3.1MB
    • SHA256 ef51078ef01bd646ecd4f817d1a20ef180a2242194c3a6ba1d168285281228e0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks