General

  • Target

    f5c15d971f2824020af57ff36b008cc53ed66317265d71cfca608b71c12ff20b

  • Size

    10.5MB

  • Sample

    250105-yddzmswmdr

  • MD5

    b1a079f8d123d30d1596fe89a9d1192c

  • SHA1

    e0f080d8e6dec62ad76c01ba9c575f7eae6c1e1b

  • SHA256

    f5c15d971f2824020af57ff36b008cc53ed66317265d71cfca608b71c12ff20b

  • SHA512

    1b1d1c5d05bf90331305c75a16d474771c5f46aae0d5236aa0428c08debc307db6c25a5c8008bad657a9358754cef7b1f78c4d09e6ffa0389714d673e1c00783

  • SSDEEP

    6144:fZDhTWrhgUaxjFftGu35QZ+2PPFGrGuislc03r:fZDhTWrhgUWFfMuP0FGqb/0

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      f5c15d971f2824020af57ff36b008cc53ed66317265d71cfca608b71c12ff20b

    • Size

      10.5MB

    • MD5

      b1a079f8d123d30d1596fe89a9d1192c

    • SHA1

      e0f080d8e6dec62ad76c01ba9c575f7eae6c1e1b

    • SHA256

      f5c15d971f2824020af57ff36b008cc53ed66317265d71cfca608b71c12ff20b

    • SHA512

      1b1d1c5d05bf90331305c75a16d474771c5f46aae0d5236aa0428c08debc307db6c25a5c8008bad657a9358754cef7b1f78c4d09e6ffa0389714d673e1c00783

    • SSDEEP

      6144:fZDhTWrhgUaxjFftGu35QZ+2PPFGrGuislc03r:fZDhTWrhgUWFfMuP0FGqb/0

    • Tofsee

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

    • Tofsee family

    • 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