General

  • Target

    4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399.exe

  • Size

    514B

  • Sample

    250108-cxdbkaskfk

  • MD5

    6a0393cce6ff34424ddad27b162b67f0

  • SHA1

    c67c3d31dd2891d9f0cd070cdf957554ecfd3550

  • SHA256

    4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399

  • SHA512

    6d3c3819261150d27de6f037b7ffbdb0287bd1bb1ffe8cdd84e2a89503e24bc664489d997dbfe5f883a93229b3305fb14b104a8bdcdbee9f39b06684f5717cbc

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

2026

C2

win32updatess.DUCKDNS.ORG:2

Mutex

b70adc1c-122d-4b90-9f59-304d0ab81cd5

Attributes
  • encryption_key

    CE02DB1ED3D345B2461CC2276CDEEDF58EF19723

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399.exe

    • Size

      514B

    • MD5

      6a0393cce6ff34424ddad27b162b67f0

    • SHA1

      c67c3d31dd2891d9f0cd070cdf957554ecfd3550

    • SHA256

      4c7a86733a4ac849eec1b49179f64b81ed852c47be714d91c3b00d64b79e1399

    • SHA512

      6d3c3819261150d27de6f037b7ffbdb0287bd1bb1ffe8cdd84e2a89503e24bc664489d997dbfe5f883a93229b3305fb14b104a8bdcdbee9f39b06684f5717cbc

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks