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General

  • Target

    1d7eaebfd2a61cec5b8701148f4226b3

  • Size

    13.6MB

  • Sample

    231230-1my3aaeggm

  • MD5

    1d7eaebfd2a61cec5b8701148f4226b3

  • SHA1

    d6a2723b8007f0bd295d2243c9ecaa6e73decadc

  • SHA256

    05a8af759237e4c4b84f685669ac722006c97938991fadd34ec9bbd0ef2d58e2

  • SHA512

    6d0b45dce771065609467f89d294f4500314c1fbf37c21a214f415ad8aa79b7773bdaf1119e8f5130e385906c2094c1e697661e336567424776fa6863a727f9b

  • SSDEEP

    49152:6j5555555555555555555555555555555555555555555555555555555555555t:

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      1d7eaebfd2a61cec5b8701148f4226b3

    • Size

      13.6MB

    • MD5

      1d7eaebfd2a61cec5b8701148f4226b3

    • SHA1

      d6a2723b8007f0bd295d2243c9ecaa6e73decadc

    • SHA256

      05a8af759237e4c4b84f685669ac722006c97938991fadd34ec9bbd0ef2d58e2

    • SHA512

      6d0b45dce771065609467f89d294f4500314c1fbf37c21a214f415ad8aa79b7773bdaf1119e8f5130e385906c2094c1e697661e336567424776fa6863a727f9b

    • SSDEEP

      49152:6j5555555555555555555555555555555555555555555555555555555555555t:

    • 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