General

  • Target

    file

  • Size

    282KB

  • Sample

    231011-qqgx3abg72

  • MD5

    cde34ee43b3dca973c48845866288b1f

  • SHA1

    fa471ef6829d39f3baced3520132a880dd761aa3

  • SHA256

    d61d14ad2202f45d962f4c843d513cda5cdae9febbd70c180f4164a226bfb5d5

  • SHA512

    cdaf0d577d38d216aef124b480225950121c75675346e89447ac087dc13d9971ad2cf33aad51e737ca1c2317fbf8a066d5a06597cb0df7ba562968726bfd7f00

  • SSDEEP

    3072:fdIzwHcmhLYhdh5WbwnO1WUedoubQXRQEeoFv6YnlP1lnQC4:lIzw8mFAdhAtKlQXRbeoVp5

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file

    • Size

      282KB

    • MD5

      cde34ee43b3dca973c48845866288b1f

    • SHA1

      fa471ef6829d39f3baced3520132a880dd761aa3

    • SHA256

      d61d14ad2202f45d962f4c843d513cda5cdae9febbd70c180f4164a226bfb5d5

    • SHA512

      cdaf0d577d38d216aef124b480225950121c75675346e89447ac087dc13d9971ad2cf33aad51e737ca1c2317fbf8a066d5a06597cb0df7ba562968726bfd7f00

    • SSDEEP

      3072:fdIzwHcmhLYhdh5WbwnO1WUedoubQXRQEeoFv6YnlP1lnQC4:lIzw8mFAdhAtKlQXRbeoVp5

    • 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