The Wagner Group has struggled to recruit more fighters to support Russia in the Ukraine war.
"Don't whack off, go work for PMC Wagner," an advert on Pornhub said, according to the report.
"Don't whack off, apply for a job with the Wagner Group."
The advert also includes a phone number, which is reportedly linked with Wagner Group recruiters.
A Ukrainian military intelligence report, published in December and first obtained by CNN, said that Wagner Group fighters, which include prisoners, "have become the disposable infantry" in Ukraine.