General

  • Target

    file

  • Size

    284KB

  • Sample

    231008-p16thaed97

  • MD5

    d1de288c58de023e8aad492868da3b92

  • SHA1

    530d8675705fee02d103c076706585f8f7a97de2

  • SHA256

    ead20c77e005c89bcc2a699892caa8775d7a7aa2c15d5170fd3d4b783f8f3ee3

  • SHA512

    9179f17800fe35a816c3dc29a6d936e56658f253b83fac6c396cad5fd2f8c2c4e0beb62013c4d2625e13a5ba9ba7332f5bbadb6702eb441cc1a07e995365906e

  • SSDEEP

    3072:FcSalqHSwBWbacDEgFAdpW1Z8AZLJDAM/a9:taYlWeeEucpCZZZq

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file

    • Size

      284KB

    • MD5

      d1de288c58de023e8aad492868da3b92

    • SHA1

      530d8675705fee02d103c076706585f8f7a97de2

    • SHA256

      ead20c77e005c89bcc2a699892caa8775d7a7aa2c15d5170fd3d4b783f8f3ee3

    • SHA512

      9179f17800fe35a816c3dc29a6d936e56658f253b83fac6c396cad5fd2f8c2c4e0beb62013c4d2625e13a5ba9ba7332f5bbadb6702eb441cc1a07e995365906e

    • SSDEEP

      3072:FcSalqHSwBWbacDEgFAdpW1Z8AZLJDAM/a9:taYlWeeEucpCZZZq

    • 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