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General

  • Target

    1969b4f5d2e6b114591c04d5eface4778e34056427fa2cbc1458cb1543348d5e

  • Size

    185KB

  • Sample

    221201-mpejrsdg5y

  • MD5

    00ed2b06962df0988e8fcbdd2207a47b

  • SHA1

    5f8e780dff6f64a9500c81640f44ace1d9a8b4bf

  • SHA256

    1969b4f5d2e6b114591c04d5eface4778e34056427fa2cbc1458cb1543348d5e

  • SHA512

    1f2e52065ea6e6e14af2a23d909b3e3b271b735c16bba2b3cb63ffdde7a23bf46328e974e5349f969e6289d50945aadb451b2c5d536ac688d4808c78e1265871

  • SSDEEP

    3072:zIjusDwaMzXw52sjl+oRbrlt+KrbDAbEakHZzKwVa4P:E0aMzX/oNRt+KcEa6zZa4P

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      1969b4f5d2e6b114591c04d5eface4778e34056427fa2cbc1458cb1543348d5e

    • Size

      185KB

    • MD5

      00ed2b06962df0988e8fcbdd2207a47b

    • SHA1

      5f8e780dff6f64a9500c81640f44ace1d9a8b4bf

    • SHA256

      1969b4f5d2e6b114591c04d5eface4778e34056427fa2cbc1458cb1543348d5e

    • SHA512

      1f2e52065ea6e6e14af2a23d909b3e3b271b735c16bba2b3cb63ffdde7a23bf46328e974e5349f969e6289d50945aadb451b2c5d536ac688d4808c78e1265871

    • SSDEEP

      3072:zIjusDwaMzXw52sjl+oRbrlt+KrbDAbEakHZzKwVa4P:E0aMzX/oNRt+KcEa6zZa4P

    • 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