General

  • Target

    5bbbb8d6a54d686b060d239a323c2127

  • Size

    12.4MB

  • Sample

    240115-bgrzcafdc4

  • MD5

    5bbbb8d6a54d686b060d239a323c2127

  • SHA1

    8ca22413afbeadfe1a03304441819f002734088c

  • SHA256

    2c8b3688a091e5e4e73e451122e85f0e552e7721c1963208031a03574bd97429

  • SHA512

    cf1c83e5cee760eb2cf495ba4460ce2b4c2fb451c328652aafbea93e15a208bb30219fcc0992206608e4a35c7eb42ccd138e6c4e965956f9ab2f11b8ad8a27d4

  • SSDEEP

    49152:DHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      5bbbb8d6a54d686b060d239a323c2127

    • Size

      12.4MB

    • MD5

      5bbbb8d6a54d686b060d239a323c2127

    • SHA1

      8ca22413afbeadfe1a03304441819f002734088c

    • SHA256

      2c8b3688a091e5e4e73e451122e85f0e552e7721c1963208031a03574bd97429

    • SHA512

      cf1c83e5cee760eb2cf495ba4460ce2b4c2fb451c328652aafbea93e15a208bb30219fcc0992206608e4a35c7eb42ccd138e6c4e965956f9ab2f11b8ad8a27d4

    • SSDEEP

      49152:DHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHn:

    • 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