The woman has been charged with spreading false information about Russia's armed forces.
It comes after reports the Russian President is using body doubles to cover for him in public appearances.
Despite cuts to its oil production, Russia has still been exporting almost 5 million crude barrels per day this year.
Kim left Pyongyang for Russia on Sunday on board his train.
The North Korean leader will make a rare trip out of his country, likely on an armoured train, to meet with Vladimir Putin in Russia.
Russian investigations continue into what caused Prigozhin's plane to crash.
Russian mercenary chief Yevgeny Prigozhin was buried quietly in a leafy cemetery on the outskirts of St Petersburg
Nine others died in the plane crash.
It comes after a deadly plane crash is believed to have killed Yevgeny Prigozhin, the volatile chief of the mercenary group.