General

  • Target

    Client-built.exe

  • Size

    348KB

  • Sample

    241213-h9m97askgs

  • MD5

    e8ecdeb99f70e49718a4fc9986f86df3

  • SHA1

    4f50bde0200a60dfe74a957a4f927e5648e2e78f

  • SHA256

    d0030ab6b4ed701eca6cad94f123517f564edb6a17ca33cbe6415cea10ac1401

  • SHA512

    f04bbab81c20eb22315914d20fa3d34761e0821592189b12c8821b311a3056f9c767bfc57eb41403c55a5eeb0cef50575686c1766ccfb164c5bb1892637c37ba

  • SSDEEP

    6144:SRNHXf500Mr7ULWRbNlPyDg+Rve9cc6i0pzci:Kd50xUxs+RWGcdOzci

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Test

C2

5.tcp.eu.ngrok.io:13432

5.tcp.eu.ngrok.io:8080

Mutex

QSR_MUTEX_zDi3X3iiANcUc0nFPZ

Attributes
  • encryption_key

    10b0G4xQi1VrldATZzJ7

  • install_name

    win.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Runtime

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      348KB

    • MD5

      e8ecdeb99f70e49718a4fc9986f86df3

    • SHA1

      4f50bde0200a60dfe74a957a4f927e5648e2e78f

    • SHA256

      d0030ab6b4ed701eca6cad94f123517f564edb6a17ca33cbe6415cea10ac1401

    • SHA512

      f04bbab81c20eb22315914d20fa3d34761e0821592189b12c8821b311a3056f9c767bfc57eb41403c55a5eeb0cef50575686c1766ccfb164c5bb1892637c37ba

    • SSDEEP

      6144:SRNHXf500Mr7ULWRbNlPyDg+Rve9cc6i0pzci:Kd50xUxs+RWGcdOzci

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks