General

  • Target

    file.exe

  • Size

    255KB

  • Sample

    231012-jwlpwahh54

  • MD5

    33030d0b493f19bb8523b5fc1342bb27

  • SHA1

    725238253dbcdba1d290deee6f811ff34724065a

  • SHA256

    6f03902dc9064576d27afb97ff51eeee325dbfe1d5e0a62f84b70fa0d2645f94

  • SHA512

    e66812f18320557d838fa3446329d5fc7362e6ad3ac595e4b8c6b5ce3b14e04b45dd790b90b0529f6a58c8fd993955586145545ab3de7d25f046b2356999799a

  • SSDEEP

    3072:4ZtRyRPxlad/IzBVrDadItw0xYbN79/2qEsIClpHN:ktRyC/Iz+Ew0abNBuqEtE

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file.exe

    • Size

      255KB

    • MD5

      33030d0b493f19bb8523b5fc1342bb27

    • SHA1

      725238253dbcdba1d290deee6f811ff34724065a

    • SHA256

      6f03902dc9064576d27afb97ff51eeee325dbfe1d5e0a62f84b70fa0d2645f94

    • SHA512

      e66812f18320557d838fa3446329d5fc7362e6ad3ac595e4b8c6b5ce3b14e04b45dd790b90b0529f6a58c8fd993955586145545ab3de7d25f046b2356999799a

    • SSDEEP

      3072:4ZtRyRPxlad/IzBVrDadItw0xYbN79/2qEsIClpHN:ktRyC/Iz+Ew0abNBuqEtE

    • 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)

    • 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