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General

  • Target

    707794eed28f8c7efd154aa947fb77fa182cff9c9c8289aaaac5dac40f6571f6

  • Size

    215KB

  • Sample

    221218-3q9pasgh6y

  • MD5

    0ff25d7ac8af430e2f10e21a6bf33c80

  • SHA1

    9954e396f2be967eda1165dbab49ecc3ee676e8f

  • SHA256

    707794eed28f8c7efd154aa947fb77fa182cff9c9c8289aaaac5dac40f6571f6

  • SHA512

    f8fa5b0b4263bae58804be99fce380bd9afe4f09995e888e7f00f8b08f85837093b007b90726d5bd7e2f1580561df8df6ecd20de004e44dbe40f089819bbb6ea

  • SSDEEP

    6144:r+YLPnjOQWSNb61+rr+fv+0TO1ejcbXF:r+Yj6kb61k/0TOgYbXF

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      707794eed28f8c7efd154aa947fb77fa182cff9c9c8289aaaac5dac40f6571f6

    • Size

      215KB

    • MD5

      0ff25d7ac8af430e2f10e21a6bf33c80

    • SHA1

      9954e396f2be967eda1165dbab49ecc3ee676e8f

    • SHA256

      707794eed28f8c7efd154aa947fb77fa182cff9c9c8289aaaac5dac40f6571f6

    • SHA512

      f8fa5b0b4263bae58804be99fce380bd9afe4f09995e888e7f00f8b08f85837093b007b90726d5bd7e2f1580561df8df6ecd20de004e44dbe40f089819bbb6ea

    • SSDEEP

      6144:r+YLPnjOQWSNb61+rr+fv+0TO1ejcbXF:r+Yj6kb61k/0TOgYbXF

    • Tofsee

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

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Creates new service(s)

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks