General

  • Target

    JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d

  • Size

    289KB

  • Sample

    241225-a5yw5asncq

  • MD5

    fc3b7de2e1349e3132fbbc37ff6c265d

  • SHA1

    acd8bb57f4297c422a531a13172ae0a89637d4ec

  • SHA256

    21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d

  • SHA512

    95c7c767abc7383c67fdb6c84a05c5b6baabe74f71c13c1cd0b4c11bf62c6157fdff1a3867d49162d89ef6a30c20dae1b76781ba2897ccf2f93a1a70ecd16422

  • SSDEEP

    6144:eRpABz+P8behNzsXqJL6F6EkOOhxxdeTr/ekI:DBz+U0xL6Fdizxd6L

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      JaffaCakes118_21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d

    • Size

      289KB

    • MD5

      fc3b7de2e1349e3132fbbc37ff6c265d

    • SHA1

      acd8bb57f4297c422a531a13172ae0a89637d4ec

    • SHA256

      21fa4d730a137bc1b96e8cb8a175e737e7d6ff3ab3eb2b068f9a3437508aed1d

    • SHA512

      95c7c767abc7383c67fdb6c84a05c5b6baabe74f71c13c1cd0b4c11bf62c6157fdff1a3867d49162d89ef6a30c20dae1b76781ba2897ccf2f93a1a70ecd16422

    • SSDEEP

      6144:eRpABz+P8behNzsXqJL6F6EkOOhxxdeTr/ekI:DBz+U0xL6Fdizxd6L

    • Tofsee

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

    • Tofsee family

    • 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