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General

  • Target

    8084ddbb05abf2b0b58da1df1651381d7faf40f7e11abacbaf3b4109a5c4c55f

  • Size

    184KB

  • Sample

    221201-lym2tsga37

  • MD5

    ff27a95b8ff697b431c1d702f4f4a5b9

  • SHA1

    b00db7aa00da096b1925c7ab201e0f594d6fe244

  • SHA256

    8084ddbb05abf2b0b58da1df1651381d7faf40f7e11abacbaf3b4109a5c4c55f

  • SHA512

    30a3d67c37d35c34d8f0e196d50b25124d8896370ebce0ecc21c5c5843d9dd114be5baf092f5dd9f12f3caed99942fcca1dbd1a45e7dddbc4031b4a60e25dee6

  • SSDEEP

    3072:o+MTMVhkZdkwprC573PfJg/gzCvoUUfIKcJaOKRw+6/6gWmBo:pMFZdkwGg4zCOfIKcJaO+MSgW

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      8084ddbb05abf2b0b58da1df1651381d7faf40f7e11abacbaf3b4109a5c4c55f

    • Size

      184KB

    • MD5

      ff27a95b8ff697b431c1d702f4f4a5b9

    • SHA1

      b00db7aa00da096b1925c7ab201e0f594d6fe244

    • SHA256

      8084ddbb05abf2b0b58da1df1651381d7faf40f7e11abacbaf3b4109a5c4c55f

    • SHA512

      30a3d67c37d35c34d8f0e196d50b25124d8896370ebce0ecc21c5c5843d9dd114be5baf092f5dd9f12f3caed99942fcca1dbd1a45e7dddbc4031b4a60e25dee6

    • SSDEEP

      3072:o+MTMVhkZdkwprC573PfJg/gzCvoUUfIKcJaOKRw+6/6gWmBo:pMFZdkwGg4zCOfIKcJaO+MSgW

    • 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