Oracle VirtualBox Additions ISO

Download location

Downloads are located here in the respective folders for the version of VirtualBox

For example

Version 7.0.6
https://download.virtualbox.org/virtualbox/7.0.6/VBoxGuestAdditions_7.0.6.iso

Version 7.0.8
https://download.virtualbox.org/virtualbox/7.0.8/VBoxGuestAdditions_7.0.8.iso

Mount the disk to the VM