The documentation is not straight forward but it does lead me to believe that this might be possible
https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-module-apache.html#apache-settings
https://www.elastic.co/guide/en/beats/filebeat/current/filtering-and-enhancing-data.html
https://www.elastic.co/guide/en/beats/filebeat/current/add-fields.html
https://www.elastic.co/guide/en/beats/filebeat/current/regexp-support.html
example: I'd like to drop events from x-module for things like health checks from my load balancer and add metadata by regex the filename (example: my-app-apache-access.log or my-other-apache-access.log) and add some useful information like I do with the normal processors in filebeat.yml