In two words ; Machine Type Q35, VNC driver CIRRUS.
Download NiceHashOS from : https://www.nicehash.com/download-center
Download and install OSFMount : https://www.osforensics.com/tools/mount-disk-images.html
On a Windows VM :
- Extract the NHos archive with Winrar or 7Zip.
- With OSFMount, select tthe extracted .img file and mount the DDOS3.31+FAT16 partition.
- Uncheck "read-only drive"
- Open the mounted partition in the explorer an