General

  • Target

    7e3c88b63ad3aa607cc07c79c05075eec2832c9a4ccb03e0005620759081f31f

  • Size

    288KB

  • Sample

    241221-cagepszjat

  • MD5

    80738ce6e30247c37ee36568c43c8a5f

  • SHA1

    23e857927a17559cff000d3cde52d2fdf4b99cc9

  • SHA256

    7e3c88b63ad3aa607cc07c79c05075eec2832c9a4ccb03e0005620759081f31f

  • SHA512

    ea2a6a84ac11eb7631fb04c8fb6c30aa3aa3238dae674bfee5e859296a0f3f25e0ef9d44ee7b3550c9cae44323363e16d882d5be1b305e19408e0a2d05b24c48

  • SSDEEP

    6144:k7zO0LSclT6FOwEP5Kq+SMv0VGb7bDcllbkvn:alJtTF9zVGkllbk/

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

hiyashi-64129.portmap.io:64129

Mutex

PjIwWrgtTiUxldOLKM

Attributes
  • encryption_key

    NN6uwWE7m1kB5ep5QSu8

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost

  • subdirectory

    SubDir

Targets

    • Target

      7e3c88b63ad3aa607cc07c79c05075eec2832c9a4ccb03e0005620759081f31f

    • Size

      288KB

    • MD5

      80738ce6e30247c37ee36568c43c8a5f

    • SHA1

      23e857927a17559cff000d3cde52d2fdf4b99cc9

    • SHA256

      7e3c88b63ad3aa607cc07c79c05075eec2832c9a4ccb03e0005620759081f31f

    • SHA512

      ea2a6a84ac11eb7631fb04c8fb6c30aa3aa3238dae674bfee5e859296a0f3f25e0ef9d44ee7b3550c9cae44323363e16d882d5be1b305e19408e0a2d05b24c48

    • SSDEEP

      6144:k7zO0LSclT6FOwEP5Kq+SMv0VGb7bDcllbkvn:alJtTF9zVGkllbk/

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Checks computer location settings

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

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks