Apache doesn't own the files, some other task running as apache, like PHP, probably created those files. This is a very common problem with Plesk which using FastCGI solves but it creates a ton of new and more annoying problems.
some other task running as apache, like PHP, probably created those files
Correct php does create them, PHP is running as an Apache_mod and safe mode is off. Exactly the same as on my old VPS so I don't understand why files/folders created with PHP have apache as owner/group and not the correct user/group.