The IRA targeted a range of people and personalities, from users who were interested in anodyne issues like motherhood or music, to those who followed more politically divisive topics such as immigration and police brutality.

Pushing racial division

One day after Dylann Roof killed nine black churchgoers in Charleston, a Russian propaganda account, Black Matters, gave Facebook 1,295 rubles (about $20) for one ad, seeking to capitalize on the tragedy by getting more users to follow the account.

“Sadness and shocking tragedy at historically black church in Charlestone (sic). *CLICK TO GET LIVE UPDATES ON OUR PAGE,*” the post reads. “What if America is stil (sic) a deeply racist country? What if the church is not a safe place anymore?”

In the months before the election, BlackMatters would use that same page to push the message shared by almost all of the accounts: pleading with Facebook users not to support Hillary Clinton.

“You know, a great number of black people support us saying that #HillaryClintonlsNotMyPresident! So this time we would like to make a #flashmob against #HillaryClinton because she is the real enemy of black community and our followers prove it showing their disgrace to her personality and policy,” one Black Matters post reads.

A Facebook ad purchased by the Kremlin-linked IRA Russian troll farm and released by Congress on Thursday. Courtesy of US Congress

Thirteen Russian individuals affiliated with the troll farm were indicted by special counsel Robert Mueller in February for interfering in the 2016 U.S. election and conspiring to obstruct “the lawful functions of the United States government through fraud and deceit.”

According to the indictment, the troll farm’s operations “included supporting the presidential campaign of then-candidate Donald J. Trump” and “disparaging Hillary Clinton.” At a news conference revealing the charges, Deputy Attorney General Rod Rosenstein said, “There is no allegation any American had any knowledge” of the troll farm’s activities in the indictment.

In a blog post timed to the House Intelligence Committee’s release, Facebook detailed a number of changes the company has made in the interest of preventing future misinformation campaigns. Among them, Facebook highlighted new transparency features for advertisements, a doubling of the number of human content monitors, and the removal of “nearly one-third” of the controversial ad targeting terms utilized by the IRA.

“This will never be a solved problem because we're up against determined, creative and well-funded adversaries,” the post said. “But we are making steady progress.”

Political influencers

The newly released documents show that Russia’s infamous “troll farm” had a keen interest in the world of American political influencers.

In the two final ads purchased by the Russian propaganda campaign in August of last year, the troll farm pushed an ad for its anti-immigration page “Secured Borders” to fans of Fox News prime-time personalities Sean Hannity, Tucker Carlson, Laura Ingraham, and Bill O’Reilly, and to followers of the channel itself.

The same page targeted followers of right-wing personalities such as Rush Limbaugh, Michelle Malkin and Michael Savage, along with Facebook accounts that “liked” President Trump and Jesus Christ.

A Facebook ad purchased by the Kremlin-linked IRA Russian troll farm and released by Congress on Thursday. Courtesy of US Congress

The most expensive sponsored troll farm post invited users to follow the Patriot U.S. group, and cost the IRA about $5,000, according to an NBC News analysis.

The “Back the Badge” pro-police officer sponsored post was the most widely seen, boasting almost 1.5 million impressions and nearly 75,000 clicks.

Nearly one-third of the ads released by Congress were never seen by anyone, having zero impressions and zero ad dollars spent on them.

Capitalizing on tragedy

When buying ads for the pages Black Matters and Don’t Shoot, the troll farm exclusively targeted four American cities: Baltimore, Cleveland, St. Louis and Ferguson, Missouri.

One ad was purchased less than two months after the death of Freddie Gray, a 25-year-old African-American man from Baltimore who died from spinal injuries sustained while in police custody. The post, backed by a 3,700-ruble (about $58) ad buy, pushed an event at Baltimore City Circuit Courthouse called “Demand Justice for Freddie Gray” and targeted only the greater Baltimore area.

Other posts about black issues targeted all four cities, pushing news articles about police brutality and essays about being black in America, sometimes written in the first person as an African-American. Some of the posts geotargeting Facebook users in Cleveland came less than seven months after Tamir Rice, a black 12-year-old boy from Cleveland, was killed by police while he played with a toy gun in a park.

A Facebook ad purchased by the Kremlin-linked IRA Russian troll farm and released by Congress on Thursday. Courtesy of US Congress

The ads would frequently seek to smear Clinton. One post, aimed at Facebook users who expressed interest in civil rights, Martin Luther King Jr., or Malcolm X, proclaimed: “Hillary Clinton is insane! I know that many black people support this old dirty b---h.”

Another post pushed a petition calling on readers to “Disavow support for the Clinton political dynasty” and remove her from the ballot. Another for Instagram targeted Tea Party members and cautioned readers not to support Clinton, “Unless you want to see America in flames.”

Another for a Facebook page for “Woke Blacks” after the election said not voting in the election was appropriate. “Well now all i want to say is get over Trump and Clinton, they are rich white people, the elite who were born into and are a part of the system.”

Don’t Shoot, a page that exclusively pushed news about police brutality, called for violence against police in an ad targeted towards Facebook users in Louisiana.

“We were wondering how long time would it take to make people fighting back? So now, karma's coming back for blue pigs!” Later in the passage, “Take out a few dozen cops and the rest will change.”

Diving into pop culture debates

The troll farm also attempted to push a general interest meme page dubbed Memopolis that targeted fans of Reddit, Buzzfeed, 9gag, CollegeHumor and “NBA memes.” The page pointed to posts on Dudeers.com, a site with previously unreported ties to the troll farm that went inactive in 2017.

The troll farm even attempted to expand its foray into American pop culture debates onto the streets of Manhattan.

Another ad targeting African-Americans on Instagram leveraged news reports of an anti-Beyoncé rally — a viral stunt that wound up being attended by just two people — to push a pro-Beyoncé rally at the same location on Park Avenue in New York.

“Stop the white privilege by participating in a PRO-Beyoncé Rally!” the post reads. “Support Queen B!”

NBC News' Mike Memoli contributed to this story.