Overview

overview

10

Static

static

10

System33.exe

windows10-2004-x64

10

System33.exe

windows11-ltsc_2024-x64

10

Resubmissions

11/08/2026, 10:32

260811-mle15a1dqf

11/08/2026, 10:31

260811-mkhevscl9x10

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General

  • Target
    System33.exe
  • Size 3.1MB
  • Sample260811-mkhevscl9x
  • SHA256 49d8504f76c269321cf2d0c1cc20f2e9cb62bfdb2598c816122b268fb4a72a6d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.18.5:4782

Mutex

  • fa94c223-1877-41f4-8a3a-ff7dbb3011b2

Attributes
  • encryption_key

    66DA603959D1286D678FCCFC659A6AF773652D49

  • install_name

    System33.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Sys

  • reconnect_delay

    3000

  • startup_key

    Antimalware

  • subdirectory

    System33

Targets

    • Target
      System33.exe
    • Size 3.1MB
    • SHA256 49d8504f76c269321cf2d0c1cc20f2e9cb62bfdb2598c816122b268fb4a72a6d
    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks