Not saying the game is necessarily safe, but I'm pretty sure cracks tend to get flagged more often. You can look up why if you like. You can even look up what's considered a good score on VirusTotal if that's what you're using to check. Like you can be careful, but you telling us your specific antivirus flagged the program as whatever doesn't really help anyone. It just puts the burden on someone else to alleviate you own fears.
Point is, you're always going to be taking a risk downloading anything from a pirate site, regardless of whether or not it's initially flagged as a virus. The best you can do is learn how to gauge the danger and decide if it's worth it to you.
P.S. Because a crack isn't official content, you can't just ask for a different one. Some other 3rd party would have to crack it, and it'll still probably trip your antivirus.