General

  • Target

    bec7b442ad82c058a0e1ec15cc2e7972

  • Size

    12.2MB

  • Sample

    240310-q9s5faea24

  • MD5

    bec7b442ad82c058a0e1ec15cc2e7972

  • SHA1

    78f97bb34fe7e6b974c0c283d038b978e7948781

  • SHA256

    cb024a31f49379cf3b0d99d6af5cc7c43a30ccb7b2c58c9277cbbff37e912d20

  • SHA512

    4843adfd4588a2bace882745350d7140e6e2d288801c58acbc766759c89b104318aac3209ada9ecb1f7b196035ab27aa7ebd0734ea31ab67d7ff3986b8603897

  • SSDEEP

    49152:cvVGWdbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbP:cvV

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      bec7b442ad82c058a0e1ec15cc2e7972

    • Size

      12.2MB

    • MD5

      bec7b442ad82c058a0e1ec15cc2e7972

    • SHA1

      78f97bb34fe7e6b974c0c283d038b978e7948781

    • SHA256

      cb024a31f49379cf3b0d99d6af5cc7c43a30ccb7b2c58c9277cbbff37e912d20

    • SHA512

      4843adfd4588a2bace882745350d7140e6e2d288801c58acbc766759c89b104318aac3209ada9ecb1f7b196035ab27aa7ebd0734ea31ab67d7ff3986b8603897

    • SSDEEP

      49152:cvVGWdbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbP:cvV

    • 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