General

  • Target

    e9235af1531343351a94508e6795d9fdc05bb06b334e8368dc39f0fe12c46f05

  • Size

    814KB

  • Sample

    210908-k3cafsebf3

  • MD5

    303ea82c0a37e377879a61a6d403ab48

  • SHA1

    f3f542e801ae5a7689864d974e1b4776468acbe2

  • SHA256

    e9235af1531343351a94508e6795d9fdc05bb06b334e8368dc39f0fe12c46f05

  • SHA512

    d280e0e59a51135a78cf7699c89317768f8a045441a20990ab286a48be9e20c93ef1eea85f18d9517654f28218c960d21f2ececbe0baa3c8a2790e1304c7c279

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Client

C2

spicy-scissors.auto.playit.gg:40602

Mutex

VNM_MUTEX_ZPezzH7q77HhYvgQHf

Attributes
  • encryption_key

    qDSGWka1LfDTYuj2fN6F

  • install_name

    GNU.exe

  • log_directory

    Logs

  • reconnect_delay

    2500

  • startup_key

    Windows Security

  • subdirectory

    Ubuntu

Targets

    • Target

      e9235af1531343351a94508e6795d9fdc05bb06b334e8368dc39f0fe12c46f05

    • Size

      814KB

    • MD5

      303ea82c0a37e377879a61a6d403ab48

    • SHA1

      f3f542e801ae5a7689864d974e1b4776468acbe2

    • SHA256

      e9235af1531343351a94508e6795d9fdc05bb06b334e8368dc39f0fe12c46f05

    • SHA512

      d280e0e59a51135a78cf7699c89317768f8a045441a20990ab286a48be9e20c93ef1eea85f18d9517654f28218c960d21f2ececbe0baa3c8a2790e1304c7c279

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • VenomRAT

      VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v6

Tasks