While the image will boot without a license, it is typically restricted to very low throughput (usually 100Kbps) until a valid Cisco Smart License is applied. This "lab mode" is sufficient for learning CLI commands but unsuitable for production traffic.
This is the specific software version (9.12.2.9). Each version contains unique bug fixes, security patches, and feature sets. Asav9-12-2-9.qcow2 Download
Do you need help with the once it boots? Are you trying to connect ASDM to this specific version? While the image will boot without a license,
This is the most popular use case. These platforms allow you to drag and drop the .qcow2 file to simulate complex enterprise networks without buying expensive hardware. Asav9-12-2-9.qcow2 Download