General

  • Target

    Contact Card.exe

  • Size

    376KB

  • Sample

    240105-1tmylabcgp

  • MD5

    409b88b2b275353f2ca05983cef1abf5

  • SHA1

    2fc14e18c0b090d55360e60468489aa65e2375f2

  • SHA256

    d56dd549736bda8fd1ebc8ae17c0b642c1df0fb5ce5e824b723d9b3f29da38c3

  • SHA512

    f2729c972505fb76df726b7fc44ce2f96831af4c37acd46dac640be32f9a43f4e32fbde1dbbf230b721bdabf421760e26324732f701491a22ab6962f2b63fbca

  • SSDEEP

    6144:GI6bPXhLApfpebKxMZWnmaxv6prs9NNbgSWVGg9R+1FZ+UsukEXVX:7mhApDmWhIVGg9R+1FPsukEB

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

John

C2

202.2.12.13:4782

Mutex

QSR_MUTEX_CxO1HuVkIgYkhY4NA9

Attributes
  • encryption_key

    s52dOq4uyyE0qGeD9OKm

  • install_name

    updater.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java updater

  • subdirectory

    Java

Targets

    • Target

      Contact Card.exe

    • Size

      376KB

    • MD5

      409b88b2b275353f2ca05983cef1abf5

    • SHA1

      2fc14e18c0b090d55360e60468489aa65e2375f2

    • SHA256

      d56dd549736bda8fd1ebc8ae17c0b642c1df0fb5ce5e824b723d9b3f29da38c3

    • SHA512

      f2729c972505fb76df726b7fc44ce2f96831af4c37acd46dac640be32f9a43f4e32fbde1dbbf230b721bdabf421760e26324732f701491a22ab6962f2b63fbca

    • SSDEEP

      6144:GI6bPXhLApfpebKxMZWnmaxv6prs9NNbgSWVGg9R+1FZ+UsukEXVX:7mhApDmWhIVGg9R+1FPsukEB

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • 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