General

  • Target

    67d3bd519670a3a0fdcb3b30b0e143e73225cf561d2448a92e8e9378e989ac86.bat

  • Size

    535KB

  • Sample

    241111-cz94ba1alq

  • MD5

    b9e1a4ea5f3b3fd0b0394183365edf8b

  • SHA1

    79bec6a406682c1385ba71a62e70b5744de0fb76

  • SHA256

    67d3bd519670a3a0fdcb3b30b0e143e73225cf561d2448a92e8e9378e989ac86

  • SHA512

    132bcd79be79e2b2fb6319d25f9ae89fc8bda65c9872792181b270cd31ad43998c1a34319e9d2f66e7bf3f035428231644d3c253e6eb1ae30095b64a702cf969

  • SSDEEP

    12288:jdnWhmK+sUu8PzDo84iBk1XZq51gzyqS996PxMdGos+Rcxdj:9WhmFsJ848Zk9KyMdGL+Y5

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

walkout.ddnsgeek.com:8080

Mutex

27391f85-a482-471a-b2cd-1f8ab5bde32e

Attributes
  • encryption_key

    6469F8C5BA9A2CFDCF4A3F1651D1E92DBEA41117

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      67d3bd519670a3a0fdcb3b30b0e143e73225cf561d2448a92e8e9378e989ac86.bat

    • Size

      535KB

    • MD5

      b9e1a4ea5f3b3fd0b0394183365edf8b

    • SHA1

      79bec6a406682c1385ba71a62e70b5744de0fb76

    • SHA256

      67d3bd519670a3a0fdcb3b30b0e143e73225cf561d2448a92e8e9378e989ac86

    • SHA512

      132bcd79be79e2b2fb6319d25f9ae89fc8bda65c9872792181b270cd31ad43998c1a34319e9d2f66e7bf3f035428231644d3c253e6eb1ae30095b64a702cf969

    • SSDEEP

      12288:jdnWhmK+sUu8PzDo84iBk1XZq51gzyqS996PxMdGos+Rcxdj:9WhmFsJ848Zk9KyMdGL+Y5

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Executes dropped EXE

    • Loads dropped DLL

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

MITRE ATT&CK Enterprise v15

Tasks