General

  • Target

    ae103e5b5c8ef0a895facd30ab6658ca00abff8604f751cc1429dd0ee3c19a9e

  • Size

    13.2MB

  • Sample

    231114-xn5pnsfc2w

  • MD5

    3328e6fe99f8cfe5b8acbaab0cb50fd0

  • SHA1

    fcd53cf0cf6b7dc3fb623908525082500cdddc17

  • SHA256

    ae103e5b5c8ef0a895facd30ab6658ca00abff8604f751cc1429dd0ee3c19a9e

  • SHA512

    2cb03e94d20b5a3d0c6c81d51ec8b00988b65b2c372b21ae561ab0df3331e2bbc9973bece7c527aad4b61c08b1f33b0954e0cce92fd9bbff74c6c98f574d15c6

  • SSDEEP

    3072:38NYa2qJjULtTNupQyEC6pxhhfm5OcVi:3sRItTNKr2f45

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      ae103e5b5c8ef0a895facd30ab6658ca00abff8604f751cc1429dd0ee3c19a9e

    • Size

      13.2MB

    • MD5

      3328e6fe99f8cfe5b8acbaab0cb50fd0

    • SHA1

      fcd53cf0cf6b7dc3fb623908525082500cdddc17

    • SHA256

      ae103e5b5c8ef0a895facd30ab6658ca00abff8604f751cc1429dd0ee3c19a9e

    • SHA512

      2cb03e94d20b5a3d0c6c81d51ec8b00988b65b2c372b21ae561ab0df3331e2bbc9973bece7c527aad4b61c08b1f33b0954e0cce92fd9bbff74c6c98f574d15c6

    • SSDEEP

      3072:38NYa2qJjULtTNupQyEC6pxhhfm5OcVi:3sRItTNKr2f45

    • 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