During my research, I ran across this connection to the Russian media outlet, so widely cited in IRA investigation of October 2017. Nationofchange, November 2017:
The source used in almost all of this reporting is the same, RBC Information Systems, a company owned by Russian oligarch and 2012 presidential candidate, Mikhail Prokhorav.
Apparently this information isn’t quite accurate though, as RBC was sold by Prokhorav in June 2017. First a little background via Wikipedia:
In 2016, Prokhorov ran afoul of Putin when his media group Onexim, specifically RBC Media, published articles and news reports on the Panama Papers and Putin’s son-in-law Kirill Shamalov’s connections and offshore assets. Onexim offices were raided by the Federal Security Service as well as tax department officials, in April 2016.