General

  • Target

    4b9cc0ee2d9c9a88d789249ecb86b1ba

  • Size

    10.7MB

  • Sample

    231226-ck1lbsgdf6

  • MD5

    4b9cc0ee2d9c9a88d789249ecb86b1ba

  • SHA1

    64710b02f796d02403901b8cdf1a5ca331f2b037

  • SHA256

    7da7a2f8b2d06754ee5f6e4caf7a21528704ed80a08f0cedf25894d84d3dfb88

  • SHA512

    781b520f96df3f99e5f92a65e4512603b55ab23359c816c453f2200916fff5fdd2d778c3db158ce603166192207b04058313e52a33ed7bf52b688567209e6248

  • SSDEEP

    24576:UjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBX:Unh

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      4b9cc0ee2d9c9a88d789249ecb86b1ba

    • Size

      10.7MB

    • MD5

      4b9cc0ee2d9c9a88d789249ecb86b1ba

    • SHA1

      64710b02f796d02403901b8cdf1a5ca331f2b037

    • SHA256

      7da7a2f8b2d06754ee5f6e4caf7a21528704ed80a08f0cedf25894d84d3dfb88

    • SHA512

      781b520f96df3f99e5f92a65e4512603b55ab23359c816c453f2200916fff5fdd2d778c3db158ce603166192207b04058313e52a33ed7bf52b688567209e6248

    • SSDEEP

      24576:UjDuKnh7YzbKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBX:Unh

    • Tofsee

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

    • Windows security bypass

    • 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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks