General

  • Target

    Uni.exe

  • Size

    348KB

  • Sample

    240630-yaerrstbrd

  • MD5

    2c6a48d7339cbf28d46ee837fd2c64b9

  • SHA1

    b72ed6d53b252117f4159908adbc6694e6d73dc5

  • SHA256

    45213c63aaaf31c6b3a20b632e6b6f0efcc5ca693528bff63d02752f48f17590

  • SHA512

    ee1ed8b2efcbc08f811a4fc85fa68ec7bc698bb8be9c4856f82113533097c5e960e03bac4a0fb45f53fa7fb3acff49e32a0ce585e427d6245b4c6106c56b573d

  • SSDEEP

    6144:d7EHwNHJsa2fqt+XoDk8Q/7ew6sQ2dD0S+AxE6mlZ8ebMZJLlKtCmIEOfYsQhm+P:txpsanAHKQmIVfYsQJie

Malware Config

Extracted

Family

quasar

Version

15.5.0

Botnet

Crypted

C2

147.185.221.20:49485

Mutex

QSR_MUTEX_k8eftMEuU7a4TIUS2H

Attributes
  • encryption_key

    7VNoqFBD2kgjE7AIWeFj

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Uni.exe

    • Size

      348KB

    • MD5

      2c6a48d7339cbf28d46ee837fd2c64b9

    • SHA1

      b72ed6d53b252117f4159908adbc6694e6d73dc5

    • SHA256

      45213c63aaaf31c6b3a20b632e6b6f0efcc5ca693528bff63d02752f48f17590

    • SHA512

      ee1ed8b2efcbc08f811a4fc85fa68ec7bc698bb8be9c4856f82113533097c5e960e03bac4a0fb45f53fa7fb3acff49e32a0ce585e427d6245b4c6106c56b573d

    • SSDEEP

      6144:d7EHwNHJsa2fqt+XoDk8Q/7ew6sQ2dD0S+AxE6mlZ8ebMZJLlKtCmIEOfYsQhm+P:txpsanAHKQmIVfYsQJie

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • 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 Matrix

Tasks