General

  • Target

    3289ff07ba3c5b4ea9614f862dae3bd8.bin

  • Size

    152KB

  • Sample

    231107-b14r9ahe8s

  • MD5

    d630f364131d4c63a56a2a863bb3fa3d

  • SHA1

    a037e4dd1757d0ceedcfe6b348a28de37ba8c898

  • SHA256

    bfcad6b47aa60ee1cbf2ca6de332fa02daccef124062e17a0239c60fc8376ca0

  • SHA512

    99a058dd8f6f9b090c5887b8e9b599c32b2c4a6bc929576e6a07cae7c4f67736b55f3317b109e47dfd21f89a9b8538b72c48bd04d416e45270c7a93653c7fcfd

  • SSDEEP

    3072:55s6GrVEdjH19fZIWeY4SKECfI1MDwGWfHLlAfucvk9SRWAlh:5cwpZyS4iMFS+mcvk98W8

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      c93020e01233f2935a6fba66fa3e3ccc38b0fc50bacd0a374c1130910f821935.exe

    • Size

      251KB

    • MD5

      3289ff07ba3c5b4ea9614f862dae3bd8

    • SHA1

      30b15edf7ad3f7bc059f58436198d5619f06a53a

    • SHA256

      c93020e01233f2935a6fba66fa3e3ccc38b0fc50bacd0a374c1130910f821935

    • SHA512

      9e90abf93b6e7268a0c8993c864d9b106c00990f77c1d8011ea7325a0467332f508f04dc083c46880dea9a71a9a6fbf6c8bdcec83b310093eea0c455c66e5a82

    • SSDEEP

      3072:7RoP5wl8uJh5E7jjzFApPWASdKogJodIj+5JjAxSdhee3hUDxy/Ocat:toWlbhOTFApPmdKogJc5JMxUh7OQG

    • 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