Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Resubmissions

05/11/2026, 15:13

261105-sl63hagg3310

05/11/2026, 00:21

261105-anq5ysew8y10

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample261105-sl63hagg33
  • SHA256 33d1b6f999c1c6a51db44136f421f50493ebfea6596a5adc6e4bf21c534282f3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 172.16.0.2:4444

Mutex

  • 02d9a560-aca8-449a-972b-3ae605288516

Attributes
  • encryption_key

    91E929AE4015FFF66A5CA6A67CB3D989D3D60AB6

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    microsoft_keyboard

  • reconnect_delay

    3000

  • startup_key

    Microsoft Startup

  • subdirectory

    Microsoft

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 33d1b6f999c1c6a51db44136f421f50493ebfea6596a5adc6e4bf21c534282f3
    • 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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks