General

  • Target

    3c7b639b7991255518ac3ff7a9cd7926

  • Size

    13.0MB

  • Sample

    231225-zrlr3sbgdr

  • MD5

    3c7b639b7991255518ac3ff7a9cd7926

  • SHA1

    78df0e627aef3c579512f8a2f80868144d363c0a

  • SHA256

    ede12aae367dc234d5043dfb40537182d2fd9874c7165b8c9edca4a210ad14c2

  • SHA512

    20f98dd5c76b3a2f2cc7892ac0f9ccc056edd971b818cea297a4be64d645265df116c269ac60f60e5b8e034b5617ce59493895ba223a3bb823b130121c74a33e

  • SSDEEP

    196608:rzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzb:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      3c7b639b7991255518ac3ff7a9cd7926

    • Size

      13.0MB

    • MD5

      3c7b639b7991255518ac3ff7a9cd7926

    • SHA1

      78df0e627aef3c579512f8a2f80868144d363c0a

    • SHA256

      ede12aae367dc234d5043dfb40537182d2fd9874c7165b8c9edca4a210ad14c2

    • SHA512

      20f98dd5c76b3a2f2cc7892ac0f9ccc056edd971b818cea297a4be64d645265df116c269ac60f60e5b8e034b5617ce59493895ba223a3bb823b130121c74a33e

    • SSDEEP

      196608:rzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzb:

    • 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