General

  • Target

    JaffaCakes118_450f776d1da2bc4ed3f7638282f4c518

  • Size

    10.6MB

  • Sample

    250107-bkkz7sxjbs

  • MD5

    450f776d1da2bc4ed3f7638282f4c518

  • SHA1

    e0146150acaf2bd63e9aab2617749473d60817f5

  • SHA256

    7ba54a05a984fee14ebb6858dedf7bd78bb4a01791b71257697b387590a26ecd

  • SHA512

    df5303bad0f8f940b8e26b6c8eac391eb40f9b1a65f514e495027ec5ab6cdd8a25765d9d83f663bd0eb9846ee638a90aa78620b5aa3fdacd6fc14206e3179bdb

  • SSDEEP

    6144:HCuvSVL/t4EOL2KAR48Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do3:HCOSVxELDAR

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      JaffaCakes118_450f776d1da2bc4ed3f7638282f4c518

    • Size

      10.6MB

    • MD5

      450f776d1da2bc4ed3f7638282f4c518

    • SHA1

      e0146150acaf2bd63e9aab2617749473d60817f5

    • SHA256

      7ba54a05a984fee14ebb6858dedf7bd78bb4a01791b71257697b387590a26ecd

    • SHA512

      df5303bad0f8f940b8e26b6c8eac391eb40f9b1a65f514e495027ec5ab6cdd8a25765d9d83f663bd0eb9846ee638a90aa78620b5aa3fdacd6fc14206e3179bdb

    • SSDEEP

      6144:HCuvSVL/t4EOL2KAR48Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do2Do3:HCOSVxELDAR

    • 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