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General

  • Target

    file

  • Size

    295KB

  • Sample

    231003-jpbakaah97

  • MD5

    6957a5f3d470c118331c9782ba0f7e25

  • SHA1

    b7bfb58c14356659b5921667855878cdce8f9704

  • SHA256

    6caf5622f61890f6a0e50dba5d080f23b76e80ecb0265884310fec0fb8f0e9f6

  • SHA512

    becae03c0b216b9ed117d395a3a7c3ad0a63598e435ce261ea0a8d1b8d61bbf15b3b63230431b69804d4124fc3144b89feecbe9b3660eb3622feb93e0c421f5a

  • SSDEEP

    3072:uFdUUuBC9ByFs7APAk39ttWZys1LuYtRHohiTy:8dUUoCXyFs7MwYstuMHG

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      file

    • Size

      295KB

    • MD5

      6957a5f3d470c118331c9782ba0f7e25

    • SHA1

      b7bfb58c14356659b5921667855878cdce8f9704

    • SHA256

      6caf5622f61890f6a0e50dba5d080f23b76e80ecb0265884310fec0fb8f0e9f6

    • SHA512

      becae03c0b216b9ed117d395a3a7c3ad0a63598e435ce261ea0a8d1b8d61bbf15b3b63230431b69804d4124fc3144b89feecbe9b3660eb3622feb93e0c421f5a

    • SSDEEP

      3072:uFdUUuBC9ByFs7APAk39ttWZys1LuYtRHohiTy:8dUUoCXyFs7MwYstuMHG

    • 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)

    • 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