I screwed up and killed Sara. It does seem to point you to a site that downloads a file. I did not open the file and deleted it off my PC.
If it was a virus, I am sure my Windows Defender would start flipping out.
The end of the game redirects you to a website that was owned by the devs, and is now owned by hackers. This isn’t part of the game, the game just isn’t updated and scammers are taking advantage of this to spread malware. Thankfully, you seemed to avoid any issues, but I’m leaving to warn others who may not be as savvy.