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General

  • Target

    2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia

  • Size

    13.6MB

  • Sample

    250212-1cqyxsyldm

  • MD5

    f3b1b2b1d0278d2b6208d20373fa71c5

  • SHA1

    4dde8a6c941614087573f4e298defc1c881e58df

  • SHA256

    a4287a992a3a033ee2751d0afe1f3461109c37550a7ab412bb34114581b231b9

  • SHA512

    f11b8f9fa2ed80835a741602365bd5f77591165dcaad2c5fc2cf08626137d2e355405dbc6f97d577866c5b34339a9ce21a6d1aee9b636f1283e9f52329095d57

  • SSDEEP

    24576:t/0dLk3X4ICvkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkT:F0dLk3ohc

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      2025-02-12_f3b1b2b1d0278d2b6208d20373fa71c5_mafia

    • Size

      13.6MB

    • MD5

      f3b1b2b1d0278d2b6208d20373fa71c5

    • SHA1

      4dde8a6c941614087573f4e298defc1c881e58df

    • SHA256

      a4287a992a3a033ee2751d0afe1f3461109c37550a7ab412bb34114581b231b9

    • SHA512

      f11b8f9fa2ed80835a741602365bd5f77591165dcaad2c5fc2cf08626137d2e355405dbc6f97d577866c5b34339a9ce21a6d1aee9b636f1283e9f52329095d57

    • SSDEEP

      24576:t/0dLk3X4ICvkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkT:F0dLk3ohc

    • Tofsee

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

    • Tofsee family

    • Windows security bypass

    • Creates new service(s)

    • Downloads MZ/PE file

    • 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