General

  • Target

    JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090

  • Size

    328KB

  • Sample

    241223-3kzxxavmhv

  • MD5

    89f39e311ddd79b59a40af182fba5d26

  • SHA1

    3e31861cac289a22a617cec2f0274bf6c4d3f83b

  • SHA256

    e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090

  • SHA512

    d8e9245483de0588da7418020a9d96a04a59004f8cebf036256e25c87af5144f97412177d08ddd4424b071d69eb9b5b5185fbe67e6655664714d4d617fb9e289

  • SSDEEP

    6144:WAiKWhKNQ7hHkBNQvbNAJIZMVfwoxounXLd+xf1ECx++pscM0q8:WAi3hHhHkBuYdnXLd+xyC0MD

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

Targets

    • Target

      JaffaCakes118_e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090

    • Size

      328KB

    • MD5

      89f39e311ddd79b59a40af182fba5d26

    • SHA1

      3e31861cac289a22a617cec2f0274bf6c4d3f83b

    • SHA256

      e1eb7fe372b39f889e1ca5e172ccc94e1549a421b5c396301d6e8745554cc090

    • SHA512

      d8e9245483de0588da7418020a9d96a04a59004f8cebf036256e25c87af5144f97412177d08ddd4424b071d69eb9b5b5185fbe67e6655664714d4d617fb9e289

    • SSDEEP

      6144:WAiKWhKNQ7hHkBNQvbNAJIZMVfwoxounXLd+xf1ECx++pscM0q8:WAi3hHhHkBuYdnXLd+xyC0MD

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Tofsee family

    • Windows security bypass

    • Creates new service(s)

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks