Overview

overview

10

Static

static

1

Final room...st.bat

windows7-x64

7

Final room...st.bat

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    NEAS.a9c9696816a1672a5511b0c7c6b8cc3813cf886b098eeca719b283ae49e484997z_JC.rar
  • Size 447KB
  • Sample231026-x545gage45
  • SHA256 a9c9696816a1672a5511b0c7c6b8cc3813cf886b098eeca719b283ae49e48499
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
quasardefender_bypassspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.0.0

Botnet

  • Defender_Bypass

C2

  • burk2n.dynu.net:4782

Mutex

  • IJy39X1DtiAJigDyVP

Attributes
  • encryption_key

    ZUQJuN27rjP6OlfAri54

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      Final rooming list.bat
    • Size 579KB
    • SHA256 af5f068d0a2b8aa461a28be084e3e39cb7538b9b4b564e59cf75854420965271
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    quasardefender_bypassspywaretrojan

    • 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

    • Loads dropped DLL

    • 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 v15

Tasks