Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample260602-t16wqaav8t
  • SHA256 9e59b307e546d5a5b4847189f33275c56ec8705b9f290bc42f0d67baf71680bc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasarruntime brokerdiscoveryexecutionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Runtime Broker

C2

  • biliex.ddns.net:4782

Mutex

  • f5825daa-bc69-4e27-a531-0fb0efe0fd44

Attributes
  • encryption_key

    5B27051D67AA2CCE9314596003B68709A13FC003

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Runtime Broker

  • subdirectory

    discord

Targets

    • Target
      Client-built.exe
    • Size 3.1MB
    • SHA256 9e59b307e546d5a5b4847189f33275c56ec8705b9f290bc42f0d67baf71680bc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    runtime brokerdiscoveryexecutionquasarpersistencespywaretrojan

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks