Unfortunately, no.
The predefined miner urlhaus.yml has a url of https://urlhaus.abuse.ch/downloads/text/, which is just a listing of malware URLs with no other values. There is a different url at https://urlhaus.abuse.ch/downloads/csv/ that has several fields (ID, Dateadded, URL, URL status, Threat, Associated tags, and Link to URLhaus entry), but none with a confidence value.
I suppose one could re-write the miner to use the other URL and generate their own level of confidence from the "Dateadded" and "URL status" (excluding the oldest entries that have an "offline" status), but that's a little beyond my current level of proficiency.
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