General

  • Target

    a91f8b81a22c65134af570cf2bb93e84_JaffaCakes118

  • Size

    142KB

  • Sample

    240614-l6cwtszcnk

  • MD5

    a91f8b81a22c65134af570cf2bb93e84

  • SHA1

    50f63f734ad90f3c2347b96b4a5dad6e81c23b7a

  • SHA256

    41a044c38cf4e44d706566f07a73b129a1bfbd95ddda8bfca3da8efb2bd510af

  • SHA512

    74f004da841c3332d2da099b9d72aeaa2248e6c09986b633f8a033380d748da82323927185f69b977cc800e6127d62851dbb03953b2fadf35db1e50959e7957b

  • SSDEEP

    3072:6lHB+LO7fItSSoJvnra4BcwfMq/eTW8qb09f:Z6goJDDBcwt/vy

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      a91f8b81a22c65134af570cf2bb93e84_JaffaCakes118

    • Size

      142KB

    • MD5

      a91f8b81a22c65134af570cf2bb93e84

    • SHA1

      50f63f734ad90f3c2347b96b4a5dad6e81c23b7a

    • SHA256

      41a044c38cf4e44d706566f07a73b129a1bfbd95ddda8bfca3da8efb2bd510af

    • SHA512

      74f004da841c3332d2da099b9d72aeaa2248e6c09986b633f8a033380d748da82323927185f69b977cc800e6127d62851dbb03953b2fadf35db1e50959e7957b

    • SSDEEP

      3072:6lHB+LO7fItSSoJvnra4BcwfMq/eTW8qb09f:Z6goJDDBcwt/vy

    • 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