You are incorrect. They are doing this so she can play the victim card.

If they did nothing Trump wins easily. By them putting this stuff out it helps her and her special interests groups claim she is just another female victim. The only other alternative is the Chinese due to their sophistication, but they lack the connections to do this quietly. It could be the North Koreans, but they lack the persistence. NK is quick in and quick out from a cyber security perspective.

The Russians Love Hillary, so they will use backdoor diplomacy to influence her selection. They own her decision making process and her advisors. They know what brand of toilet paper she will buy before she buys it.

Trump is the wild card. In the history of Russian intelligence, they only win (drive results) when they know what their adversary is going to do. With Trump, they don't know. He's too unpredictable. They do know they stand more to gain with Hillary for two reasons: They know Bill and his positions, and they know everything there is to know about Hillary due to her poor security protocols.