General

  • Target

    1a1d04df45b475a2eb017dbf36a273faa561ef379185d7764c696157142c4a63

  • Size

    12.5MB

  • Sample

    240812-xgtzlavakl

  • MD5

    f7be204dbf642a2f941919e2b4a848bd

  • SHA1

    fb8d491e289ade656b8cf8df5d6a5d37315f1e85

  • SHA256

    1a1d04df45b475a2eb017dbf36a273faa561ef379185d7764c696157142c4a63

  • SHA512

    6e64281a73083da6bbbcbc901d2753826f680e60d58d08cf687aa3dbe440756c35794e333f7e72ce75c2bd9c5399edc8da317bef354ece192ea23d0cc811017a

  • SSDEEP

    6144:2+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:2+r1IeSXMXc7LlxWV4Ug97GZ+ej

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      1a1d04df45b475a2eb017dbf36a273faa561ef379185d7764c696157142c4a63

    • Size

      12.5MB

    • MD5

      f7be204dbf642a2f941919e2b4a848bd

    • SHA1

      fb8d491e289ade656b8cf8df5d6a5d37315f1e85

    • SHA256

      1a1d04df45b475a2eb017dbf36a273faa561ef379185d7764c696157142c4a63

    • SHA512

      6e64281a73083da6bbbcbc901d2753826f680e60d58d08cf687aa3dbe440756c35794e333f7e72ce75c2bd9c5399edc8da317bef354ece192ea23d0cc811017a

    • SSDEEP

      6144:2+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:2+r1IeSXMXc7LlxWV4Ug97GZ+ej

    • Tofsee

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

    • 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