General

  • Target

    e2afad2e4405ec0c5c22398203a3443d_JaffaCakes118

  • Size

    640KB

  • Sample

    240915-rpnjwsybnm

  • MD5

    e2afad2e4405ec0c5c22398203a3443d

  • SHA1

    eb212f7682d5fa24f9580aaeeaee6c3b3318f548

  • SHA256

    6fb67950f8de0f87ee4cd34d50d068ee4b5e5418d363a189da0d9949db6be8ed

  • SHA512

    30aa913e09d206d7ed08d0d71e97444fdb350dd2f8d8e382c2c4c4b236196b245a4dc6e229d5c7cad5f1ce0bfba1675cd677f82eb7728f59299922008843b5c3

  • SSDEEP

    12288:Ke/qyvMV80A9RzEPTWJVBpDyFjbgexPprcLFI0gNoxHsgL7A26:RRMV8P9uPTqmjUexBr8xH1L

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

svhost

C2

myconect.ddns.net:6606

Mutex

VNM_MUTEX_rHOHbrAQKctPD4d68w

Attributes
  • encryption_key

    rDFwhCyuKMqXO7llDpB2

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      e2afad2e4405ec0c5c22398203a3443d_JaffaCakes118

    • Size

      640KB

    • MD5

      e2afad2e4405ec0c5c22398203a3443d

    • SHA1

      eb212f7682d5fa24f9580aaeeaee6c3b3318f548

    • SHA256

      6fb67950f8de0f87ee4cd34d50d068ee4b5e5418d363a189da0d9949db6be8ed

    • SHA512

      30aa913e09d206d7ed08d0d71e97444fdb350dd2f8d8e382c2c4c4b236196b245a4dc6e229d5c7cad5f1ce0bfba1675cd677f82eb7728f59299922008843b5c3

    • SSDEEP

      12288:Ke/qyvMV80A9RzEPTWJVBpDyFjbgexPprcLFI0gNoxHsgL7A26:RRMV8P9uPTqmjUexBr8xH1L

    • 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 RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • VenomRAT

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Drops desktop.ini file(s)

    • 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 v15

Tasks