[Filebeat] Malware Bazaar Dataset for Threat Intel Module

[peasead]

Modules

Describe the enhancement:
Currently, the threat intel module for Filebeat did not have the data provided by Malware Bazaar.

Malware Bazaar provides rich file metadata about malware that can assist cyber intelligence analysts, threat hunters, and incident responders during incident response and ongoing security operations.

Describe a specific use case for the enhancement or feature:
Threat hunting, security operations, and intelligence analysis.

Filebeat module

• Test log files exist for the grok patterns
• Generated output for at least 1 log file exists

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)