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

Sharing

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General

  • Target
    System33.exe
  • Size 3.1MB
  • Sample260811-mkhevscl9x
  • SHA256 49d8504f76c269321cf2d0c1cc20f2e9cb62bfdb2598c816122b268fb4a72a6d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
office04trojanspywarequasar

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

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • System33.exe
    .exe 3.1MB

System33.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 49d8504f76c269321cf2d0c1cc20f2e9cb62bfdb2598c816122b268fb4a72a6d
  • MD5 SHA1 SHA512 SSDEEP TLSH
windows:4windowsx86arch:x86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269582
Magic Number
267
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE
PDB paths