First, try to retrieve the official installer from Wondershare’s legacy support page using your original purchase email. If that fails, use a trusted archive site with rigorous antivirus scanning. Never compromise your computer’s security for a free "crack."
I notice you're looking for a specific version of Filmora (9.5.0.21). I should let you know:
This article provides a complete guide to downloading, installing, and leveraging the features of Filmora version 9.5.0.21. What is Filmora 9.5.0.21?