General

  • Target

    JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662

  • Size

    284KB

  • Sample

    241225-wzerysslbl

  • MD5

    980a1da409587438ce6ad9402f8ef025

  • SHA1

    dc49bfc6d436dbd0a21fe23ff95280811f273c59

  • SHA256

    876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662

  • SHA512

    66391d577a8ba158ffa528d220ea51b6aa626c1c0d9716f4cd90739e7ed960a85594d3cb1419e49224e3f60508cbe3ebe06486df160302b82e3e86526313af14

  • SSDEEP

    6144:UF0i1M8mVdb98uiaMBl1wRnhu8UJfPJZSGp:UF0i1MtVdb4a+wRn6fPJZNp

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662

    • Size

      284KB

    • MD5

      980a1da409587438ce6ad9402f8ef025

    • SHA1

      dc49bfc6d436dbd0a21fe23ff95280811f273c59

    • SHA256

      876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662

    • SHA512

      66391d577a8ba158ffa528d220ea51b6aa626c1c0d9716f4cd90739e7ed960a85594d3cb1419e49224e3f60508cbe3ebe06486df160302b82e3e86526313af14

    • SSDEEP

      6144:UF0i1M8mVdb98uiaMBl1wRnhu8UJfPJZSGp:UF0i1MtVdb4a+wRn6fPJZNp

    • 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