General

  • Target

    0afa588af16c7068fbae1ae4e46900a2

  • Size

    14.2MB

  • Sample

    231230-cfwrksafb7

  • MD5

    0afa588af16c7068fbae1ae4e46900a2

  • SHA1

    07ae83b98f7bce0dbccd8c28db4accc2de760337

  • SHA256

    e43c1d14f40e2d57fb222fc937a8c007c89ccdae9d1fd6b20cbc02c987c9c442

  • SHA512

    f3341ca41c682718b47fcc89215d0accfd412ad3a4e7c83d0465c5b8a6e2d5bc41ec797b2dc0010a66296852cdb067f3ab9db7c08ea2f0d4e46ded63bfc62ebf

  • SSDEEP

    49152:zlGypVbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn:zlGyp

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      0afa588af16c7068fbae1ae4e46900a2

    • Size

      14.2MB

    • MD5

      0afa588af16c7068fbae1ae4e46900a2

    • SHA1

      07ae83b98f7bce0dbccd8c28db4accc2de760337

    • SHA256

      e43c1d14f40e2d57fb222fc937a8c007c89ccdae9d1fd6b20cbc02c987c9c442

    • SHA512

      f3341ca41c682718b47fcc89215d0accfd412ad3a4e7c83d0465c5b8a6e2d5bc41ec797b2dc0010a66296852cdb067f3ab9db7c08ea2f0d4e46ded63bfc62ebf

    • SSDEEP

      49152:zlGypVbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbn:zlGyp

    • 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