General

  • Target

    841f178c15802a89ad903f05c5148bca7ef49efd9113d636cad35067be4a4164.exe

  • Size

    3.1MB

  • Sample

    241218-dewkvszld1

  • MD5

    1d5b1579c6cf546964a067edf15d75e6

  • SHA1

    1d3e8bb39c7ad10f864efe0adfe8c4028a6fa332

  • SHA256

    841f178c15802a89ad903f05c5148bca7ef49efd9113d636cad35067be4a4164

  • SHA512

    6e9d6228928775787a4d25c1a82d36b68bb082c04cb08afb2abe93aff4d54fb25d0e216a5eb7bc11f260bfe3191259f61261556620895b5fc96e76438e354f02

  • SSDEEP

    49152:6v+I22SsaNYfdPBldt698dBcjH7OmumzRfoGdRTHHB72eh2NT:6vz22SsaNYfdPBldt6+dBcjH7Oml

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

suport24.ddns.net:4782

Mutex

b4ad83f8-b608-477d-8395-2274bcaab6d1

Attributes
  • encryption_key

    62EF51244AF3535A6A9C77206CD89D5BFECD7E4E

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      841f178c15802a89ad903f05c5148bca7ef49efd9113d636cad35067be4a4164.exe

    • Size

      3.1MB

    • MD5

      1d5b1579c6cf546964a067edf15d75e6

    • SHA1

      1d3e8bb39c7ad10f864efe0adfe8c4028a6fa332

    • SHA256

      841f178c15802a89ad903f05c5148bca7ef49efd9113d636cad35067be4a4164

    • SHA512

      6e9d6228928775787a4d25c1a82d36b68bb082c04cb08afb2abe93aff4d54fb25d0e216a5eb7bc11f260bfe3191259f61261556620895b5fc96e76438e354f02

    • SSDEEP

      49152:6v+I22SsaNYfdPBldt698dBcjH7OmumzRfoGdRTHHB72eh2NT:6vz22SsaNYfdPBldt6+dBcjH7Oml

    • 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