Malvertising via NXDOMAIN

For advertisements (blocked) via htxp://diff3.smartadserver.com I land at a NXDOMAIN: http://ipduh.com/dns/?oa155.any.onet.pl

https://www.virustotal.com/nl/ip-address/213.180.141.155/information/
https://www.virustotal.com/nl/url/78f0333923fa258837fe4be9e00e1519273d34f46e8bae4db51fc2c238696d14/analysis/
disease vector on fakt dot pl

pol

blocked by AVG http://www.avgthreatlabs.com/website-safety-reports/domain/fakt.pl/
http://www.urlvoid.com/scan/fakt.pl/