He said it on air of 112 Ukraine, Censor.NET reports.
However, Muraiev can not confirm whether Manafort was paid from Party of Regions' slush funds.
"Of course, I've heard about it. He was one of the consultants, but he was among many consultants. Naturally, you would look out for prominent world-known political consultants in order to get a guaranteed result. As for financial issues, I think only he and those who gave the money can dwell on them," the MP said when asked whether he was aware of Manafort's advisory work for the Opposition Bloc and the Party of Regions.
In addition, according to Muraiev, the scandal around Manafort is ordered and fueled by the Democrats in the heat of the election campaign.
"I think it's more about politics. We are well aware of Paul Manafort being today a political consultant of Mr. Trump, and he has very good chances. Therefore, the Democrats are using all this very actively in order to discredit their future opponent. I think the scandal stems from here," Muraiev assumed.
Earlier, Petro Poroshenko Bloc (PPB) MP Serhii Leshchenko and journalists Anton Marchuk and Sevhil Musaieva-Borovyk published some of the documents proving the existence of Party of Regions' slush funds. According to the materials, the Party of Regions spent $66 million on political corruption over the second half of 2012.
Even earlier, ex-Deputy Head of the Security Service of Ukraine Viktor Trepak said he had given the information about Party of Regions' slush fund to the National Anti-Corruption Bureau.
Related materials: Party of Regions' off-the-book payments