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
  • Sample260621-j5devscs7l
  • SHA256 324ed61e3c931dfbae9ffd858cc5cedbe6d2383c99f78294a8108555c4dec809
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.254.105:4782

Mutex

  • be73296a-9327-4b06-87be-88ff652c269c

Attributes
  • encryption_key

    5FE9A1ED814960F1F6CDE52AC7F7FB74E3A0AC67

  • install_name

    Windows_Security.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Security Startup

  • subdirectory

    Windows Security

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 324ed61e3c931dfbae9ffd858cc5cedbe6d2383c99f78294a8108555c4dec809
    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks