YARA matches for the file. Every item on the list contains the following attributes:

author: <string> rule author.
description: <string> matched rule description.
match_in_subfile: <boolean> whether the match was in a subfile or not.
rule_name: <string> matched rule name.
ruleset_id: <string> Google Threat Intelligence's ruleset ID. You can use this ID to fetch the ruleset info in the /api/v3/yara_rulesets/{id} endpoint.
ruleset_name: <string> matched rule's ruleset name.
source: <string> ruleset source.