Even if you manage to find a legitimate copy of an early AutoCAD for Mac version, it will not run on a modern Mac.
If you still choose to search for a torrent link, be aware of the following:
💀 Torrents frequently bundle hidden trojans, ransomware, and cryptominers.
The link promised a working version of the software, but it is likely that it contained malware, viruses, or other security risks. Furthermore, using the software without a license would have been against Autodesk's terms of service.