General

  • Target

    59917b4b4d1a67912f5896bfd274350cb4253cc2bf3c522781fda75ec72debf4

  • Size

    348KB

  • Sample

    241204-2a8lmatrgs

  • MD5

    e3227ee81215e58ad2b59b277ffb79f4

  • SHA1

    cfc16846c11f280d907f151a3745827313e92fbf

  • SHA256

    59917b4b4d1a67912f5896bfd274350cb4253cc2bf3c522781fda75ec72debf4

  • SHA512

    b146155add08215e7376fe8ea2e8d8080467326de410eeee8feddcd27b5b821143d23f84d87d52f0c2e3601f9519ccd589e00249c008671f6572c348d09e248f

  • SSDEEP

    6144:Aw6bPXhLApfpZUAlrmOW5bkjz3jnRBPtcW:xmhAp0Al8WjnRBP2W

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

myhost88.ddns.net:4782

Mutex

QSR_MUTEX_gBbXbVHlujwl4SvP3X

Attributes
  • encryption_key

    7Bgb3YgUbXKS2un5vbeM

  • install_name

    ms configs.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    ms configs

  • subdirectory

    SubDir

Targets

    • Target

      59917b4b4d1a67912f5896bfd274350cb4253cc2bf3c522781fda75ec72debf4

    • Size

      348KB

    • MD5

      e3227ee81215e58ad2b59b277ffb79f4

    • SHA1

      cfc16846c11f280d907f151a3745827313e92fbf

    • SHA256

      59917b4b4d1a67912f5896bfd274350cb4253cc2bf3c522781fda75ec72debf4

    • SHA512

      b146155add08215e7376fe8ea2e8d8080467326de410eeee8feddcd27b5b821143d23f84d87d52f0c2e3601f9519ccd589e00249c008671f6572c348d09e248f

    • SSDEEP

      6144:Aw6bPXhLApfpZUAlrmOW5bkjz3jnRBPtcW:xmhAp0Al8WjnRBP2W

    • 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.

    • 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