General

  • Target

    3ca8c8d37aaf196e64823ea50c99f31b

  • Size

    13.0MB

  • Sample

    231225-zwe54acbep

  • MD5

    3ca8c8d37aaf196e64823ea50c99f31b

  • SHA1

    77e4c78731986023345c93aae45916607be812b8

  • SHA256

    b4dd0c183d3d1773fa1c7d8bea616c7f1dfb88a976d3cf830e51a603d8ae2357

  • SHA512

    1ba499d0e8f3c253f4a5f16e7770150154f71809636e7967c74cc2caf1072da459c41aae6379f8e8d0d6e65f62daada99242e561fab2c25a6fa376bcb4c64709

  • SSDEEP

    6144:IxbQq7asTdx16ifogWuQK4ZpG3XQ4L0hlDF5r:8ashxM05WewpmAljr

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      3ca8c8d37aaf196e64823ea50c99f31b

    • Size

      13.0MB

    • MD5

      3ca8c8d37aaf196e64823ea50c99f31b

    • SHA1

      77e4c78731986023345c93aae45916607be812b8

    • SHA256

      b4dd0c183d3d1773fa1c7d8bea616c7f1dfb88a976d3cf830e51a603d8ae2357

    • SHA512

      1ba499d0e8f3c253f4a5f16e7770150154f71809636e7967c74cc2caf1072da459c41aae6379f8e8d0d6e65f62daada99242e561fab2c25a6fa376bcb4c64709

    • SSDEEP

      6144:IxbQq7asTdx16ifogWuQK4ZpG3XQ4L0hlDF5r:8ashxM05WewpmAljr

    • Tofsee

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

    • 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