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General

  • Target

    b71016f0a0d06dec97931344d33e03fa

  • Size

    13.7MB

  • Sample

    240306-k8n67sff8y

  • MD5

    b71016f0a0d06dec97931344d33e03fa

  • SHA1

    d67939051d1a7f9225da1c0a0237122f68e2b91b

  • SHA256

    00d2de40ab21c023cf7f8bba0707492e9500dc80c94a45855463b4c5c39ac563

  • SHA512

    9d802af5bd7e302d2eea368c0eafa689e3f1a7adcc3ad19a1fc393c945684efb18ee4e4f62834c1ae966d1ddc657fa2817743243a494d12169cad4b8a29820a5

  • SSDEEP

    49152:dR8888888888888888888888888888888888888888888888888888888888888n:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      b71016f0a0d06dec97931344d33e03fa

    • Size

      13.7MB

    • MD5

      b71016f0a0d06dec97931344d33e03fa

    • SHA1

      d67939051d1a7f9225da1c0a0237122f68e2b91b

    • SHA256

      00d2de40ab21c023cf7f8bba0707492e9500dc80c94a45855463b4c5c39ac563

    • SHA512

      9d802af5bd7e302d2eea368c0eafa689e3f1a7adcc3ad19a1fc393c945684efb18ee4e4f62834c1ae966d1ddc657fa2817743243a494d12169cad4b8a29820a5

    • SSDEEP

      49152:dR8888888888888888888888888888888888888888888888888888888888888n:

    • 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