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General

  • Target

    0bc1320cc6400eb3d0ef6e0ffd52ad9e

  • Size

    15.0MB

  • Sample

    231230-cz2f6sfch5

  • MD5

    0bc1320cc6400eb3d0ef6e0ffd52ad9e

  • SHA1

    e507245cc7fae623067823c1e32c3059e68ba267

  • SHA256

    dcc331955bb4aee347e5702cd4311e66266c4bdf2d7e75eaaecec72ff45eaeb5

  • SHA512

    395e3938389375b5a171df71980aa5853ddd662147692a4765f24ccc1d6d9296e6f53d338ce75e045a7bf79ef6c3df8beb77fca32a3f39b141afafe889f9a68a

  • SSDEEP

    24576:CerU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbH:CsW

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      0bc1320cc6400eb3d0ef6e0ffd52ad9e

    • Size

      15.0MB

    • MD5

      0bc1320cc6400eb3d0ef6e0ffd52ad9e

    • SHA1

      e507245cc7fae623067823c1e32c3059e68ba267

    • SHA256

      dcc331955bb4aee347e5702cd4311e66266c4bdf2d7e75eaaecec72ff45eaeb5

    • SHA512

      395e3938389375b5a171df71980aa5853ddd662147692a4765f24ccc1d6d9296e6f53d338ce75e045a7bf79ef6c3df8beb77fca32a3f39b141afafe889f9a68a

    • SSDEEP

      24576:CerU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbH:CsW

    • 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