The most immediate threat is malware. Keygens are almost never distributed in isolation. They are bundled with:
Safe alternatives:
Xf-adsk2015-x64.exe is a third-party "keygen" or "crack" utility used to bypass the legitimate licensing system of Autodesk 2015 software products. Using or searching for this tool carries significant security and legal risks. Risks of Using Keygens Malware and Viruses
For those needing access to Autodesk software without these risks, consider these legitimate options:
Without more specific information, it's challenging to provide a detailed analysis. However, if you're working with Autodesk software from 2015 on a 64-bit system and are interested in aspects related to solid modeling or generating reports within the software, there are likely specific tools and features within your software package designed to assist with these tasks. You might want to consult the software's documentation or support resources for detailed guidance.

