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General

  • Target

    b2387e9cc031fcbec0f70661fdbbfe2d

  • Size

    13.2MB

  • Sample

    240304-qkhbmsbb5y

  • MD5

    b2387e9cc031fcbec0f70661fdbbfe2d

  • SHA1

    03ff4b6e8129804cc68bb49e06a0aa8ff7d5d918

  • SHA256

    6a728152dd4884ea2f3b154d13dd694b23dac1d46b81fcb2fdae002b93b19270

  • SHA512

    f10520b48f65fdb3b6a18ec56d21fe02ab17c239d54e0d91c621300a6e7eed4a30ac2185e0f076e88beda66e1182dc58d1f0f70561519bac596bb0ff47302ad0

  • SSDEEP

    98304:kuyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyT:

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      b2387e9cc031fcbec0f70661fdbbfe2d

    • Size

      13.2MB

    • MD5

      b2387e9cc031fcbec0f70661fdbbfe2d

    • SHA1

      03ff4b6e8129804cc68bb49e06a0aa8ff7d5d918

    • SHA256

      6a728152dd4884ea2f3b154d13dd694b23dac1d46b81fcb2fdae002b93b19270

    • SHA512

      f10520b48f65fdb3b6a18ec56d21fe02ab17c239d54e0d91c621300a6e7eed4a30ac2185e0f076e88beda66e1182dc58d1f0f70561519bac596bb0ff47302ad0

    • SSDEEP

      98304:kuyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyT:

    • 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