Based on community discussions on Reddit, here is how the "story" usually plays out for a user with this file:
Denuvo is the "Final Boss" of DRM. Most games are cracked within hours of release, but Denuvo-protected games can remain unplayed by pirates for years. A file like Crkfx-EMP.7z usually surfaces after a major AAA game release (like Hogwarts Legacy Resident Evil Village Crkfx-EMP.7z