Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample261114-h231nset8t
  • SHA256 52a7e960ea241564c0c7dcc5f58843b3bde81f0005ac493f9dae7f7d88adae4e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04discoveryexecutionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • public.zinguard.net:4782

  • zinguard.net:4782

  • blog.wifi6certified.com:4782

  • wifi6certified.com:4782

  • hempnationonline.com:4782

  • agarport.co:4782

  • record.radio.fm:4782

  • activate-audiovisual.co.uk:4782

  • tech.tmd45.in:4782

  • feroxsports.com:4782

  • member.meslot1688.com:4782

  • https://public.zinguard.net/vn/:443

  • km8kbet.com:443

  • km8kbet.com:8080

  • km8kbet.com:80

  • m.518timebet.com:80

  • m.518timebet.com:443

  • m.518timebet.com:8080

  • 518timebet.com:443

  • 518timebet.com:40

Mutex

  • 4833781f-ab77-4c9e-af36-793930f77164

Attributes
  • encryption_key

    61D61573755A2E8791F777F44FE72A8C404B3F90

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    50

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 52a7e960ea241564c0c7dcc5f58843b3bde81f0005ac493f9dae7f7d88adae4e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04discoveryexecutionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks