Yes, it came to their attention. It was obviously bogus and caused a volume spike in the stock. Perhaps FINRA's market surveillance group blew the whistle, but they likely did not need anyone to inform them, because it was so obvious and egregious.
Legitimate companies register and report to the SEC. Those that aren't, don't. I would say closer to 100% of the OTC stocks make false claims on a regular basis. But most are smart enough not to claim a buyout from an unnamed company 1200% above market price. That is almost a sure suspension to follow.