It's the same old rehash of tired crapola from a generation ago. It didn't stick then, it won't stick now. There ARE some more recent scandals, most notably the naked influence peddling of the Clinton Foundation. Unfortunately, Trump can't make that case, since he gave money to the Clinton Foundation and is much an establishment insider as the Clintons themselves.
Maybe -- it depends on what the attacks were intended to accomplish. I think Trump could actually gain some headway if he handles it properly.
For one thing, there's new ammunition. Hillary's millions from speeches, and the appearance of quid pro quo for Bill's speeches, and the unbelievable graft committed by the Clinton Foundation -- none of those have really been hashed out in the context of the voting public. This would almost certainly raise the level of disgust among normal people, who are already strongly disposed to recognizing her hypocrisy.
For another, there's her record as SoS -- the outright disasters with respect to Russia, the Middle East, and so on: there's fertile ground there if Trump's campaign can hit them in an adult and responsible way. (This, I admit, is a very forlorn hope....)
Finally, there's the Bernie Sanders factor, which is new and different this time around. The Machiavellian strategy would be to so damage Clinton's image among Bernie voters that it would prevent them from holding their noses and pulling the lever for Hillary. This has a good chance of succeeding to some degree: even if none of them would vote for Trump, they also wouldn't vote for her.
On that note, a great many of the Bernie voters are young and almost certainly unaware of the pattern of corruption that defines Hillary's public life. Many young people are predisposed to distrust her, even if they can't put their fingers on why. The new scandals are new to them, and really rank with hypocrisy. And the old scandals are new to them, also. So Hillary's vote count is probably pretty vulnerable among that demographic.
Among the older Bernie voters .... well, I think the hypocrisy rankles them, too. Many of these will vote for her in the spirit of #NeverTrump, but I think some large number of them will not.
