General

  • Target

    JaffaCakes118_249a58536bbcb7a6e8d6955def7e2f13

  • Size

    10.8MB

  • Sample

    241231-srekfaynhq

  • MD5

    249a58536bbcb7a6e8d6955def7e2f13

  • SHA1

    6351d807c7eb2cb473f51011a91b6218606fab6b

  • SHA256

    700fb5ae3600141c1634dcfd95fcf5c6a45c1745f42ca21d50612e442e78e4a3

  • SHA512

    e080a05c501b33f7a1277ff3d5ddfb683c0880718022a29d6f2d663dd0497cca9947dded191e0bdd0a693faa2fd3fc74db3bfc5c3b57e8b5f61feda2e71b4bbb

  • SSDEEP

    12288:yZrif5ZHYBN6U7EP9rFRnyphAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAn:yBif5ZCEFxV

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      JaffaCakes118_249a58536bbcb7a6e8d6955def7e2f13

    • Size

      10.8MB

    • MD5

      249a58536bbcb7a6e8d6955def7e2f13

    • SHA1

      6351d807c7eb2cb473f51011a91b6218606fab6b

    • SHA256

      700fb5ae3600141c1634dcfd95fcf5c6a45c1745f42ca21d50612e442e78e4a3

    • SHA512

      e080a05c501b33f7a1277ff3d5ddfb683c0880718022a29d6f2d663dd0497cca9947dded191e0bdd0a693faa2fd3fc74db3bfc5c3b57e8b5f61feda2e71b4bbb

    • SSDEEP

      12288:yZrif5ZHYBN6U7EP9rFRnyphAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAn:yBif5ZCEFxV

    • 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