Ultra Sonic 007: [Your own cited article mentions plenty of corruption and potential implications of graft from a phone call involving President Poroshenko, but very little in terms of Russia.
If he was as close with Putin as you imply, why did he reportedly seek out Cypriot citizenship or seek residence in Monacco instead of going to somewhere in Russia?
Even assuming Zlochevsky was acting in his own capacity rather than as a cutout for Putin, the reason he paid Biden was to assist Russia in its quest to conquer Ukraine, not help Ukraine remain independent.
Got any evidence to support this assertion of yours? Especially the bit about how Biden specifically worked with Burisma to help Russia conquer Ukraine (as compared to plain corruption and influence peddling)? ]
https://www.theguardian.com/news/2016/apr/03/panama-papers-money-hidden-offshore
The fact is, without the resources of an intelligence agency willing and able to conduct illegal activities, an illegal breach similar to the Panama Papers leak or an insider expose, it’s impossible to go beyond bread crumbs.
So the answer is "no," then. Thought so.