General

  • Target

    0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118

  • Size

    4.2MB

  • Sample

    240625-flgfma1gne

  • MD5

    0ca81a3bec58298a318d19bdf208cb99

  • SHA1

    cec944263887c4e3ac2956f2a27cbc9be86591d6

  • SHA256

    ffe3d6f61150e4a25a4e9549252dc1a505bfd2247f7d3aacec825e1787f089ea

  • SHA512

    eda9f6e37ea306e38fa5cdaf5c036782dab19a8dca628af63adb959d75579d014fd17bce5f4e9b5c7c6b24cea2cbaf95fbe849fe93b3e5faa87dbf69bdea1940

  • SSDEEP

    12288:yeASxuABkJro+1xtmnzHurEuXu4EnWu5uQpNsuiJoXO1+iy1Qq8a+jI3TiVYzfTF:v

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Skidy

C2

roasted-flag.auto.playit.gg:51952

Mutex

VNM_MUTEX_bsVy5mHRmaFZMQOLbI

Attributes
  • encryption_key

    ux20jjbixeS7PecgmZeq

  • install_name

    windows.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    windows

  • subdirectory

    $windows

Targets

    • Target

      0ca81a3bec58298a318d19bdf208cb99_JaffaCakes118

    • Size

      4.2MB

    • MD5

      0ca81a3bec58298a318d19bdf208cb99

    • SHA1

      cec944263887c4e3ac2956f2a27cbc9be86591d6

    • SHA256

      ffe3d6f61150e4a25a4e9549252dc1a505bfd2247f7d3aacec825e1787f089ea

    • SHA512

      eda9f6e37ea306e38fa5cdaf5c036782dab19a8dca628af63adb959d75579d014fd17bce5f4e9b5c7c6b24cea2cbaf95fbe849fe93b3e5faa87dbf69bdea1940

    • SSDEEP

      12288:yeASxuABkJro+1xtmnzHurEuXu4EnWu5uQpNsuiJoXO1+iy1Qq8a+jI3TiVYzfTF:v

    • 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.

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks