Clinton's involvement with the Magnitsky Act gave Putin a lot to be specifically angry about, versus Trump who has a lot of existing ties to Russia (not to mention the campaign being filled with people who also had their own positive ties to Russia). It's possible that they did not have the specific goal of influencing for one candidate, but they had a ton more to gain from one specific candidate winning over the other. I think it takes some naiveté to assume they didn't have a focused effort on behalf of one candidate over the other.