General

  • Target

    SecuriteInfo.com.Win32.BotX-gen.28812.11191.exe

  • Size

    203KB

  • Sample

    240114-pvlw5sbac6

  • MD5

    6a029324fa243a4b1cad4a6bbcc2e9a3

  • SHA1

    8187f39aaa95e89707c479db4115b4679110547c

  • SHA256

    4da2cf296ff1402fe8a6e0bdbfb00a06008b8ba5a3825b42f4f75ef2101c8ce4

  • SHA512

    ae92eb275eb0e7b44a1baf80233cc7ccb8ed3d94ad7833ea1de8b040bf4917a1a7de6f952dae0ced3fc307919c20e6748561bbe6eecc771d79f0540f4934fcdf

  • SSDEEP

    3072:FJ9RtZYNXsdUsBGQJiE/1KWvEDAKPeubjLzkYd+IrVXsfR80B+cmH:3bUVu7KPeuvJUAV95co

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      SecuriteInfo.com.Win32.BotX-gen.28812.11191.exe

    • Size

      203KB

    • MD5

      6a029324fa243a4b1cad4a6bbcc2e9a3

    • SHA1

      8187f39aaa95e89707c479db4115b4679110547c

    • SHA256

      4da2cf296ff1402fe8a6e0bdbfb00a06008b8ba5a3825b42f4f75ef2101c8ce4

    • SHA512

      ae92eb275eb0e7b44a1baf80233cc7ccb8ed3d94ad7833ea1de8b040bf4917a1a7de6f952dae0ced3fc307919c20e6748561bbe6eecc771d79f0540f4934fcdf

    • SSDEEP

      3072:FJ9RtZYNXsdUsBGQJiE/1KWvEDAKPeubjLzkYd+IrVXsfR80B+cmH:3bUVu7KPeuvJUAV95co

    • 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