When you unzip a compressed file using the default OS decompress tool, it only shows two (2) events. The other events are missing.
The issue is caused by the Windows default unzip program. The Deep Security notifier only shows two (2) events because the first virus sample is Passed but the second is Deleted. This causes the virus samples to be unzipped so there will only be two (2) events.
To resolve the issue, use the 7-Zip app to decompress the file and unzip all the virus samples. These will all be detected and written on the Anti-Malware events.