The file "telechargement-hitman-contracts-apun-kagames-com-exe" is a pirated, "highly compressed" version of Hitman: Contracts distributed by a third-party site. Executing such files poses severe security risks, including malware injection, cryptojackers, and system instability, as noted by security analysis of cracked software.

Instead of risky third-party downloads, you can obtain a safe, optimized version of the game through official digital retailers like GOG or Steam.