General

  • Target

    5b41a8ac5a68ab33e4891ea03533e8ea650c16dd669d277decae2f00217a1e4d.exe

  • Size

    3.1MB

  • Sample

    241214-eh7yqstld1

  • MD5

    fa5f99ff110280efe85f4663cfb3d6b8

  • SHA1

    ad2d6d8006aee090a4ad5f08ec3425c6353c07d1

  • SHA256

    5b41a8ac5a68ab33e4891ea03533e8ea650c16dd669d277decae2f00217a1e4d

  • SHA512

    a3b898f758060f124c443422c6dc88ba80d9892890b25d21e37a1d3947cd4b9dbef403382ee6e28c1007785a63c5fa387f7d00403db433eb59c03d0b2a88b50e

  • SSDEEP

    49152:evkt62XlaSFNWPjljiFa2RoUYIYiaJpFZwk/zLoGdWr1THHB72eh2NT:ev462XlaSFNWPjljiFXRoUYIlaj

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

havocc.ddns.net:4782

Mutex

6a533ca9-c745-463c-8bba-b6aaa9eb7fab

Attributes
  • encryption_key

    CB213225C623A8CB39D3E1628CD4D7E7D686A7F3

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Discord

  • subdirectory

    SubDir

Targets

    • Target

      5b41a8ac5a68ab33e4891ea03533e8ea650c16dd669d277decae2f00217a1e4d.exe

    • Size

      3.1MB

    • MD5

      fa5f99ff110280efe85f4663cfb3d6b8

    • SHA1

      ad2d6d8006aee090a4ad5f08ec3425c6353c07d1

    • SHA256

      5b41a8ac5a68ab33e4891ea03533e8ea650c16dd669d277decae2f00217a1e4d

    • SHA512

      a3b898f758060f124c443422c6dc88ba80d9892890b25d21e37a1d3947cd4b9dbef403382ee6e28c1007785a63c5fa387f7d00403db433eb59c03d0b2a88b50e

    • SSDEEP

      49152:evkt62XlaSFNWPjljiFa2RoUYIYiaJpFZwk/zLoGdWr1THHB72eh2NT:ev462XlaSFNWPjljiFXRoUYIlaj

    • 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

MITRE ATT&CK Enterprise v15

Tasks