yes. I think guccifer hacked blumenthal’s acct and found his way to the beast’s server from there.
A little bit about Blumenthal’s relevance from http://www.realclearpolitics.com/video/2016/05/12/cnbc_grills_sidney_blumenthal_how_would_we_know_donations_to_clinton_foundation_didnt_affect_policy.html.
“Backstory: Sidney Blumenthal was a longtime Clinton friend, Clinton Foundation employee, and supposed “fixer” who Hillary wanted to hire at the State Department, but President Obama refused to allow him to serve in his administration. That didn’t stop her from using her private email server to communicate with him about how things were going in Libya as the war spiraled out of control. His correspondences with Clinton are probably a part of any investigation into what happened in that country, and he testified at the House Benghazi Committee last year. In 2011, the U.S. and several European countries overthrew the government of Libya, leaving the country in a state of anarchy which continues today.”
Comey said guccifer admitted that he lied about having hacked Hillary.