General

  • Target
    f856d1e0775165710c72e29bbb3fd31b3a4f439345db01bfd0c1c591fe2e0250.bin
  • Size 12.2MB
  • Sample261022-dt46jsct7q
  • SHA256 f856d1e0775165710c72e29bbb3fd31b3a4f439345db01bfd0c1c591fe2e0250
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • tofsee

C2
  • vanaheim.cn

  • jotunheim.name

Targets

    • Target
      f856d1e0775165710c72e29bbb3fd31b3a4f439345db01bfd0c1c591fe2e0250.bin
    • Size 12.2MB
    • SHA256 f856d1e0775165710c72e29bbb3fd31b3a4f439345db01bfd0c1c591fe2e0250
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • Modifies Windows Firewall

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Creates new service(s)

    • Deletes itself

    • Executes dropped EXE

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks