General

  • Target

    file

  • Size

    219KB

  • Sample

    231010-zclhrshf7v

  • MD5

    c594cefe6ddfd19e7ecb0e749b4063dc

  • SHA1

    3c78b4feff67bd08b6c327531cb220cc9d92578c

  • SHA256

    23a5ce1becbbdec0486d5e8085d86c9e4275eba14b0d2c29f54ddfcf7cf1ce70

  • SHA512

    2c9557a72de6f21824ad488f676ef4d29f533f598a0bd4dff672a31aacae581962574d728b65b0bd252f039e5fe5ff35f23e14a78e2454632494c1d67a3fd2b3

  • SSDEEP

    3072:MVmR74AZSJU/IXjnzCxnT9YIdDlLrpJ55/vgx:yWsU/IrUZYeDhrfv

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file

    • Size

      219KB

    • MD5

      c594cefe6ddfd19e7ecb0e749b4063dc

    • SHA1

      3c78b4feff67bd08b6c327531cb220cc9d92578c

    • SHA256

      23a5ce1becbbdec0486d5e8085d86c9e4275eba14b0d2c29f54ddfcf7cf1ce70

    • SHA512

      2c9557a72de6f21824ad488f676ef4d29f533f598a0bd4dff672a31aacae581962574d728b65b0bd252f039e5fe5ff35f23e14a78e2454632494c1d67a3fd2b3

    • SSDEEP

      3072:MVmR74AZSJU/IXjnzCxnT9YIdDlLrpJ55/vgx:yWsU/IrUZYeDhrfv

    • 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