General

  • Target

    0c7767d4a909aa5162483997cdd2f43b

  • Size

    10.4MB

  • Sample

    231230-dlfszshahj

  • MD5

    0c7767d4a909aa5162483997cdd2f43b

  • SHA1

    2fbe8bd8270414a87f8435c170401431d76184a4

  • SHA256

    999551ac272db875d712c2b5902badfe3bb11d60613dbab74ac9e5ea67975dc9

  • SHA512

    4554f7d23ba8e27f80f62dc1926a573c0665648fa76d73ac869d87f6efe389d1860f5edcdd7ceaf6412d697c44cb6f688dfacfe3bc1318f057746faa1e2c5cec

  • SSDEEP

    49152:6j5555555555555555555555555555555555555555555555555555555555555b:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      0c7767d4a909aa5162483997cdd2f43b

    • Size

      10.4MB

    • MD5

      0c7767d4a909aa5162483997cdd2f43b

    • SHA1

      2fbe8bd8270414a87f8435c170401431d76184a4

    • SHA256

      999551ac272db875d712c2b5902badfe3bb11d60613dbab74ac9e5ea67975dc9

    • SHA512

      4554f7d23ba8e27f80f62dc1926a573c0665648fa76d73ac869d87f6efe389d1860f5edcdd7ceaf6412d697c44cb6f688dfacfe3bc1318f057746faa1e2c5cec

    • SSDEEP

      49152:6j5555555555555555555555555555555555555555555555555555555555555b:

    • 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