World Food Program USA Board Chairman Hunter Biden speaks at the World Food Program USA's Annual McGovern-Dole Leadership Award Ceremony at Organization of American States on April 12, 2016 in Washington, DC.

One month before a purported leak of files from Hunter Biden's laptop, a fake "intelligence" document about him went viral on the right-wing internet, asserting an elaborate conspiracy theory involving former Vice President Joe Biden's son and business in China.

The document, a 64-page composition that was later disseminated by close associates of President Donald Trump, appears to be the work of a fake "intelligence firm" called Typhoon Investigations, according to researchers and public documents.