General

  • Target

    000308f3e95064bc9116bcfcff9bd464.exe

  • Size

    12.5MB

  • Sample

    231231-p7e95agaf7

  • MD5

    000308f3e95064bc9116bcfcff9bd464

  • SHA1

    6a4b7f0d3ccb0a40a21265e14fa60bbfc5162bc8

  • SHA256

    96d8d4d0cd9304b198005109fc99354a3a353f5f03a9aaf1ddbf0baa179ab0cf

  • SHA512

    f5efd2c6728a3d12a83efca5dd0a979f34e9af3a7859d1010fafea300f4dd58d34e208f3b3bf3ffb8ca254ea3236957ca650e28c6c02391bbaffeb7f9a833d3c

  • SSDEEP

    98304:qvjOF//////////////////////////////////////////////////////////H:c

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      000308f3e95064bc9116bcfcff9bd464.exe

    • Size

      12.5MB

    • MD5

      000308f3e95064bc9116bcfcff9bd464

    • SHA1

      6a4b7f0d3ccb0a40a21265e14fa60bbfc5162bc8

    • SHA256

      96d8d4d0cd9304b198005109fc99354a3a353f5f03a9aaf1ddbf0baa179ab0cf

    • SHA512

      f5efd2c6728a3d12a83efca5dd0a979f34e9af3a7859d1010fafea300f4dd58d34e208f3b3bf3ffb8ca254ea3236957ca650e28c6c02391bbaffeb7f9a833d3c

    • SSDEEP

      98304:qvjOF//////////////////////////////////////////////////////////H:c

    • 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