General

  • Target

    NEAS.e6eba455a3dec3f3b4f52ec852f0335b4955b6508d9d6d6b90e9c21ab293cf0aexe_JC.exe

  • Size

    202KB

  • Sample

    231006-tnamragd75

  • MD5

    9388dbeb6fdf9003fbc7ca159cfda275

  • SHA1

    ff1d836222240de90ad3d75a279d9cc565869590

  • SHA256

    e6eba455a3dec3f3b4f52ec852f0335b4955b6508d9d6d6b90e9c21ab293cf0a

  • SHA512

    98ece8a30b01c71aacd64b9e3b0d5ffe92f5a13b4a73365dabba36be4acf11f331ee424a09b05c48279a810a77e9aff05440c201072082004b68bcdba3dea4c1

  • SSDEEP

    3072:pRcFAhzF4JmYYa2Nurb9jNbpDp6JUmu5BkIs/Vr:MA/AZD3LrFmzI2V

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      NEAS.e6eba455a3dec3f3b4f52ec852f0335b4955b6508d9d6d6b90e9c21ab293cf0aexe_JC.exe

    • Size

      202KB

    • MD5

      9388dbeb6fdf9003fbc7ca159cfda275

    • SHA1

      ff1d836222240de90ad3d75a279d9cc565869590

    • SHA256

      e6eba455a3dec3f3b4f52ec852f0335b4955b6508d9d6d6b90e9c21ab293cf0a

    • SHA512

      98ece8a30b01c71aacd64b9e3b0d5ffe92f5a13b4a73365dabba36be4acf11f331ee424a09b05c48279a810a77e9aff05440c201072082004b68bcdba3dea4c1

    • SSDEEP

      3072:pRcFAhzF4JmYYa2Nurb9jNbpDp6JUmu5BkIs/Vr:MA/AZD3LrFmzI2V

    • 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