malformed DNS packet to nyc12.ff.avast.com

Greetings all - I’m trying to track down a problem on my internal network and my router logged this beauty:
malformed DNS packet detected qdcount is 30566. Here’s the fun part: the destination is the avast server and the source IP is my provider. What is the function of nyc12.ff.avast.com? From what I read, qd count should never be greater than 1. Any info?

Probably related to avast signature update or cloud service