General

  • Target

    bedb55ac5c140a2a596d9fcbd822e5a6.bin

  • Size

    150KB

  • Sample

    230419-chqy4shd9t

  • MD5

    1890a80186fee3b99240b6ae56e9e406

  • SHA1

    735c16c84f40cea3097ea75d70d061227ac1c574

  • SHA256

    9c1879245ddd1fe0ca297f0dd29d2e605f5d92bf73ec866d943e45fbd97236df

  • SHA512

    7dc5025da1988ee6ae904a33e5e52c3ddb0cb1ccef931affb0675220ef464e46c65884031714df9bb70dd7b21912e029adabea58fc3f2b9d7597a2640809b4a7

  • SSDEEP

    3072:v+XAHvT2SgI9QCQWkYQpjz6SoY14bHnN2eR3K/J2jIA8QzGM24F8rA60i4jk:v+maSgI9Q+gjz6Bntti2j0aTd28pbjk

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      45b56889c1a9cc3a57cd8bce999914ae2199808ad38235dc53c3e9d041865a07.exe

    • Size

      213KB

    • MD5

      bedb55ac5c140a2a596d9fcbd822e5a6

    • SHA1

      cbd6195cb310f5e29c199c01180a424340266b80

    • SHA256

      45b56889c1a9cc3a57cd8bce999914ae2199808ad38235dc53c3e9d041865a07

    • SHA512

      be312de3dbf98fc18fabc2970ef13c14d291ed528b502f7937b2efd4491b2df5075ae31f878085af67c679099ebebefa9ea38ef086b4d7c4292a93e5c841d798

    • SSDEEP

      3072:QLw69nh47SsG97WGBbZrV8O38yLTMaOGpID5++qI7iMP:Ah47fKL58qjvMaH/k7iM

    • 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 v6

Tasks