General

  • Target

    4e75e88a93e9867001c1aed9c7223d5b

  • Size

    11.8MB

  • Sample

    240109-q2y1qadbd8

  • MD5

    4e75e88a93e9867001c1aed9c7223d5b

  • SHA1

    29851dc5848b185c54fa92ef4d782685a2de7398

  • SHA256

    666530df26ece50c7111222095f41eb2735f2888b0467e92bfd101e10b415695

  • SHA512

    e8025e903ba9614d01a58bd383ead0fa3603c71dc66617323a9e6ab86143350bbda98da19cc4d1bc497e075e78e87f01f73a883ea1c17abcf8feb07b080dcea8

  • SSDEEP

    24576:gm1111111111111111111111111111111111111111111111111111111111111n:

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      4e75e88a93e9867001c1aed9c7223d5b

    • Size

      11.8MB

    • MD5

      4e75e88a93e9867001c1aed9c7223d5b

    • SHA1

      29851dc5848b185c54fa92ef4d782685a2de7398

    • SHA256

      666530df26ece50c7111222095f41eb2735f2888b0467e92bfd101e10b415695

    • SHA512

      e8025e903ba9614d01a58bd383ead0fa3603c71dc66617323a9e6ab86143350bbda98da19cc4d1bc497e075e78e87f01f73a883ea1c17abcf8feb07b080dcea8

    • SSDEEP

      24576:gm1111111111111111111111111111111111111111111111111111111111111n:

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • 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