General

  • Target

    c05cd0f67349fcf3ec9623331ff98469

  • Size

    338KB

  • Sample

    240311-mhvx6sgc54

  • MD5

    c05cd0f67349fcf3ec9623331ff98469

  • SHA1

    d3d3e7403a28809a427a09a5143ca1f4964b3205

  • SHA256

    dab7a0e23822f9014969fb8a9ec8e27c947e7542ef63b0508b34ee6156757875

  • SHA512

    9c8431a355b72b89f37b5a94c9c95b120c021df3cf8cdb556ccc262ae56a1cb00c025b20915e8b4628c49499d82ef397bb59007e1ea3809de7b80e37377b7069

  • SSDEEP

    6144:dWgNDwgPQcb3+CW948kKmiRZrvdw/GY2mVRkOF:hNMgPQcbuCWOKmUH+GC

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      c05cd0f67349fcf3ec9623331ff98469

    • Size

      338KB

    • MD5

      c05cd0f67349fcf3ec9623331ff98469

    • SHA1

      d3d3e7403a28809a427a09a5143ca1f4964b3205

    • SHA256

      dab7a0e23822f9014969fb8a9ec8e27c947e7542ef63b0508b34ee6156757875

    • SHA512

      9c8431a355b72b89f37b5a94c9c95b120c021df3cf8cdb556ccc262ae56a1cb00c025b20915e8b4628c49499d82ef397bb59007e1ea3809de7b80e37377b7069

    • SSDEEP

      6144:dWgNDwgPQcb3+CW948kKmiRZrvdw/GY2mVRkOF:hNMgPQcbuCWOKmUH+GC

    • 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