Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Resubmissions

11/07/2026, 10:24

260711-mfxc8ahz2y10

11/07/2026, 10:18

260711-mb4azahy3y10

11/07/2026, 10:11

260711-l79l7ahx8x10

11/07/2026, 10:07

260711-l5mpmsfx7k10

11/07/2026, 10:05

260711-l4y2aafx5r10

11/07/2026, 09:58

260711-lzxmnafx2q10

11/07/2026, 09:55

260711-lx4m7afw7l10

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample260711-l5mpmsfx7k
  • SHA256 9e2344e85875c76c9639975287d9861653f3bb8f6bb22959b0167af905c3067b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 124.198.131.28:8000

Mutex

  • 4936583b-147d-406d-97ea-84d531f183aa

Attributes
  • encryption_key

    9BB98315C22A68EBE81C43607F4D7F4AF910E0EA

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 9e2344e85875c76c9639975287d9861653f3bb8f6bb22959b0167af905c3067b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04quasarspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    behavioral1

MITRE ATT&CK Enterprise v16

Tasks