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General

  • Target

    file

  • Size

    195KB

  • Sample

    231005-pzfwpach83

  • MD5

    cc2db916f8e2020ed1cf4f741777d101

  • SHA1

    40e5d582687651ec748be305901738e009a77c9b

  • SHA256

    b8de746feded9dbd1fb290b18d44d33eb02aaa069f789a92fb630ffa585def95

  • SHA512

    a527fd44fef11e875c043a92d08e28b307075ab7a498491dc929883f65bdaf1a69a1e046557960406dec925fc8a6f48ec68ae4ec2cc9e98775b34d372741f6e1

  • SSDEEP

    3072:pPTBMwuu/85WrfofsEeF3IedhnrA7kdSzLYrvNR/4k9Y5IAOmKT0:hTBMo/85QgheFNXrr04zNR/r989

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file

    • Size

      195KB

    • MD5

      cc2db916f8e2020ed1cf4f741777d101

    • SHA1

      40e5d582687651ec748be305901738e009a77c9b

    • SHA256

      b8de746feded9dbd1fb290b18d44d33eb02aaa069f789a92fb630ffa585def95

    • SHA512

      a527fd44fef11e875c043a92d08e28b307075ab7a498491dc929883f65bdaf1a69a1e046557960406dec925fc8a6f48ec68ae4ec2cc9e98775b34d372741f6e1

    • SSDEEP

      3072:pPTBMwuu/85WrfofsEeF3IedhnrA7kdSzLYrvNR/4k9Y5IAOmKT0:hTBMo/85QgheFNXrr04zNR/r989

    • Tofsee

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

    • Windows security bypass

    • xmrig

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

    • XMRig Miner payload

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks