andreas.scholz: Even if you installed the game via offline installer, and even if you never installed and run Galaxy, the Prey.exe still tries to connect to server-13-224-95-1.zrh50.r.cloudfront.net, which is an Amazon.com, Inc. service. You can see the attempts logged in my firewall (attachment) where it got blocked. You can also use Wireshark or similar to check that. The IP's can looked up like here:
https://db-ip.com/all/13.224.95 I hope I interpreted your question right.
Dabner: Oh I see, but why it is doing that ?
This can have many reasons from error reporting to sending user and system specs, statistical evaluation, location tracking or the unused interface for the multiplayer-dlc. It could also be a third party library that collects data, with or without knowledge of the developers.
Example: In Jun 2018, Zenimax (also publisher of Prey) included "accidentally" the spyware RedShell into the Elder Scrolls Online installer, which than later got removed again after the community complained [1].
One could analyze the packages it tries to send to make an assumption by it's content, or ask the developers. I just block it and inform others.
[1]
https://forums.elderscrollsonline.com/en/discussion/416267/zos-integrated-spyware-redshell-by-mistake-deleted-from-live-still-in-pts-folder/p1