Before extracting, upload the file to VirusTotal . This tool scans the file against over 70 different antivirus engines to see if it contains hidden threats. Common Associations
In some 3D modeling communities, numbers like "50112" represent a specific object ID in a larger database. Did you find this file on your computer, or 50112.rar
If you found this file on your computer or a download site, here is how you should look at it: Before extracting, upload the file to VirusTotal