General

  • Target

    b8073208192dd8e839a3253b7390d2d7db9722832bc049c3a5fc6219d7dab428

  • Size

    259KB

  • Sample

    221028-pdw1safea7

  • MD5

    10a6906edbc80f923af9cf298fe01d54

  • SHA1

    76cf48a3fd3be771bb65cc4ae295196e926e0c00

  • SHA256

    b8073208192dd8e839a3253b7390d2d7db9722832bc049c3a5fc6219d7dab428

  • SHA512

    f4a621db36694ade2aea7fb011422624e52740e2894b8d37ed9cb3d03d327f04a281f6a61c15accb4f8c7ac4b2fc913b6de4b37d9691283e9366a026cf40b699

  • SSDEEP

    6144:/hH+L8ZJpCtK7F6ylV8Txe5g8spMvLNC:/hH+KJAmF6yUv87vs

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      b8073208192dd8e839a3253b7390d2d7db9722832bc049c3a5fc6219d7dab428

    • Size

      259KB

    • MD5

      10a6906edbc80f923af9cf298fe01d54

    • SHA1

      76cf48a3fd3be771bb65cc4ae295196e926e0c00

    • SHA256

      b8073208192dd8e839a3253b7390d2d7db9722832bc049c3a5fc6219d7dab428

    • SHA512

      f4a621db36694ade2aea7fb011422624e52740e2894b8d37ed9cb3d03d327f04a281f6a61c15accb4f8c7ac4b2fc913b6de4b37d9691283e9366a026cf40b699

    • SSDEEP

      6144:/hH+L8ZJpCtK7F6ylV8Txe5g8spMvLNC:/hH+KJAmF6yUv87vs

    • 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