General

  • Target

    JaffaCakes118_f459a784ada721c739fdd0ffd39f0725

  • Size

    13.3MB

  • Sample

    250111-cqrklsyncs

  • MD5

    f459a784ada721c739fdd0ffd39f0725

  • SHA1

    8e9dad10f064f4d7e831176e9082c7fd2ff38c0b

  • SHA256

    7a09042fcabbf4eb8d290df23a00b023fa10aadf329d599d7ff6ed5034621535

  • SHA512

    b481c57a94c1cd0bc3a2edf1aa5b1c1075051231e76298f0f75469722bdd34d28afce9327242b10b133276d5b24858a7691418a42d5e807bc965710d2c820c5a

  • SSDEEP

    49152:Kqsm55NYMPrb/T7vO90dL3BmAFd4A64nsfJlFngTR55I7NLz1:Kq95TUGP

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

COM Surrogate

C2

10.8.1.66:8869

Mutex

119b9028-5664-4725-b2c1-1e4eaf743d68

Attributes
  • encryption_key

    B0092D1E1BA8BCBB825AA0760094E03D6D52E169

  • install_name

    3388.exe

  • log_directory

    COMLogs

  • reconnect_delay

    5000

  • startup_key

    COM Surrogate

Targets

    • Target

      JaffaCakes118_f459a784ada721c739fdd0ffd39f0725

    • Size

      13.3MB

    • MD5

      f459a784ada721c739fdd0ffd39f0725

    • SHA1

      8e9dad10f064f4d7e831176e9082c7fd2ff38c0b

    • SHA256

      7a09042fcabbf4eb8d290df23a00b023fa10aadf329d599d7ff6ed5034621535

    • SHA512

      b481c57a94c1cd0bc3a2edf1aa5b1c1075051231e76298f0f75469722bdd34d28afce9327242b10b133276d5b24858a7691418a42d5e807bc965710d2c820c5a

    • SSDEEP

      49152:Kqsm55NYMPrb/T7vO90dL3BmAFd4A64nsfJlFngTR55I7NLz1:Kq95TUGP

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • 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

    • Loads dropped DLL

    • Windows security modification

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks