General

  • Target

    566ba756b7fc2174fc195c05d9e0a36aa706e4ce397f890488227b7d0ad4ad7c

  • Size

    3.1MB

  • Sample

    240516-h5n1xsab65

  • MD5

    4a603ec4e3c5a21400eaabac7c6401c6

  • SHA1

    23b446721eacd0b6796407ca20bd1e01355ab41f

  • SHA256

    566ba756b7fc2174fc195c05d9e0a36aa706e4ce397f890488227b7d0ad4ad7c

  • SHA512

    070a5dd14bce16ba58eb65f3b3143fc7890f0e34f2ed7f3a1930e3fa8454ebcf615b43c819f16f4fc494676443bd409a3a57e8fe6e8f39ab02df5ace497eaea0

  • SSDEEP

    49152:rvrI22SsaNYfdPBldt698dBcjHLCc1J2LoGdcTHHB72eh2NT:rvU22SsaNYfdPBldt6+dBcjHLCn

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

79.132.193.215:4782

Mutex

f99ccef5-65c4-4972-adf2-fb38921cc9fc

Attributes
  • encryption_key

    1C15E91ACCFAC60B043A1336CF6912EA8572BA83

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

Targets

    • Target

      566ba756b7fc2174fc195c05d9e0a36aa706e4ce397f890488227b7d0ad4ad7c

    • Size

      3.1MB

    • MD5

      4a603ec4e3c5a21400eaabac7c6401c6

    • SHA1

      23b446721eacd0b6796407ca20bd1e01355ab41f

    • SHA256

      566ba756b7fc2174fc195c05d9e0a36aa706e4ce397f890488227b7d0ad4ad7c

    • SHA512

      070a5dd14bce16ba58eb65f3b3143fc7890f0e34f2ed7f3a1930e3fa8454ebcf615b43c819f16f4fc494676443bd409a3a57e8fe6e8f39ab02df5ace497eaea0

    • SSDEEP

      49152:rvrI22SsaNYfdPBldt698dBcjHLCc1J2LoGdcTHHB72eh2NT:rvU22SsaNYfdPBldt6+dBcjHLCn

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks