This document is the official cover story cultivated by the Russian agent since the mid 2010s.

The AIVD, the General Intelligence and Security Service of the Netherlands, identified and denied access of an agent of the Russian Federation GRU to the International Criminal Court in Hague, Netherlands.

The agent reportedly used a cover identity as a Brazilian intern and traveled from Brazil to the Netherlands. From the AIVD:

“The AIVD prevented a Russian intelligence officer from performing work at the International Criminal Court (ICC) in The Hague. The man works for the Russian military intelligence service GRU and used a Brazilian cover identity, with which he traveled from Brazil to the Netherlands. The AIVD has classified him as a threat to national security and has informed the Immigration and Naturalization Service (IND) about this via an official message. On this basis, the intelligence officer was refused entry to the Netherlands in April. He has also been declared an unwanted alien. He was sent back to Brazil on the next flight. The ICC was also informed about this case by means of an official message.”

According to the AIVD, the Russian intelligence officer posed as Brazilian Viktor Muller Ferreira (born April 4, 1989), when he is actually Sergey Vladimirovich Cherkasov (born September 11, 1985). Cherkasov used a well-thought-out cover, concealing all his ties to Russia, the GRU in particular. He was apparently attempting to gain access to the investigations in Russian war crimes in Ukraine, currently being investigated by the court.

The Main Directorate of the General Staff of the Armed Forces of the Russian Federation, formerly the Main Intelligence Directorate, and still commonly known by its previous abbreviation GRU, is the foreign military intelligence agency of the General Staff of the Armed Forces of the Russian Federation. GRU controls the military intelligence service and maintains its own special forces units.

Unlike Russia’s other security and intelligence agencies—such as the Foreign Intelligence Service (SVR), the Federal Security Service (FSB), and the Federal Protective Service (FSO), whose heads report directly to the president of Russia—the director of the GRU is subordinate to the Russian military command, reporting to the Minister of Defence and the Chief of the General Staff. (Wiki)

No comment has been made by the Russian Federation.