Sus Gen is a open source program that finds out if a executable might be malicious.
HOW TO compile the program either x64 or x86 release, open the directory in which the binary was compiled in. Run SusGen.exe, the program will then open up a file explorer. Make sure to click the executable binary you want to find out if its malicious or not! Once thats complete the program should respond with its theory.
Notes: Not everything can be malicious even if SusGen says it is. Most likely the program is packed which is why virtual size is larger than disk size.