General

  • Target

    a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe

  • Size

    348KB

  • Sample

    240410-dblw9afe8x

  • MD5

    32f3cadcabd40f0b821adba034ac8fb1

  • SHA1

    75ec24a7b088756120b9c380c6a13d88dbab5bd6

  • SHA256

    a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3

  • SHA512

    a59aae78bf7729881925fdea3f0c2370a26f3bc3ea665df3eca1278c3599d37369aaf1e5c3bc5dcf08acb02a80ba1e1f4883b855ce934908a95d1d3d4c448c40

  • SSDEEP

    6144:TzNHXf500Mb31d61sQqboCixEkZeg5kEvfmG:Hd50vd0IixDp1vfmG

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

ppprosyl.con-ip.com:4001

Mutex

QSR_MUTEX_l1M93VuqIyiH8hEQ4I

Attributes
  • encryption_key

    ucnCWAxHFqrqDWqAvywj

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe

    • Size

      348KB

    • MD5

      32f3cadcabd40f0b821adba034ac8fb1

    • SHA1

      75ec24a7b088756120b9c380c6a13d88dbab5bd6

    • SHA256

      a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3

    • SHA512

      a59aae78bf7729881925fdea3f0c2370a26f3bc3ea665df3eca1278c3599d37369aaf1e5c3bc5dcf08acb02a80ba1e1f4883b855ce934908a95d1d3d4c448c40

    • SSDEEP

      6144:TzNHXf500Mb31d61sQqboCixEkZeg5kEvfmG:Hd50vd0IixDp1vfmG

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects executables containing common artifacts observed in infostealers

    • 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