General

  • Target

    bf72645e0435b096033058f0ad4e57e4

  • Size

    11.9MB

  • Sample

    240311-bg9jdsgc56

  • MD5

    bf72645e0435b096033058f0ad4e57e4

  • SHA1

    438f4baf4f18332dd7fc9cbf6590162b03958273

  • SHA256

    68d81cc2511d5a7ea5f2e00210daeea408d2e7d4be55ea705983219c008e79d8

  • SHA512

    e5537b912189659663697923bd5e6729bfa87e8bc3e42ef23c74e275c5a25f68a51772b8741b9329a8034d72fc59804b63feedf127791b66cc85128e3864eeda

  • SSDEEP

    24576:4Uqa71YB5DHlommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm2:4F15

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      bf72645e0435b096033058f0ad4e57e4

    • Size

      11.9MB

    • MD5

      bf72645e0435b096033058f0ad4e57e4

    • SHA1

      438f4baf4f18332dd7fc9cbf6590162b03958273

    • SHA256

      68d81cc2511d5a7ea5f2e00210daeea408d2e7d4be55ea705983219c008e79d8

    • SHA512

      e5537b912189659663697923bd5e6729bfa87e8bc3e42ef23c74e275c5a25f68a51772b8741b9329a8034d72fc59804b63feedf127791b66cc85128e3864eeda

    • SSDEEP

      24576:4Uqa71YB5DHlommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm2:4F15

    • 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