Wired has published an exposé on Bentley, a Russian national named Maksim Sergeevich Galochkin, who leads a software development team inside the Trickbot cybercrime group: https://www.wired.com/story/trickbot-trickleaks-bentley/

Nisos, which helped Wired with its article, has also published a report showcasing that Trickbot was working with the Russian FSB intelligence agency in some sort of capacity: https://www.nisos.com/research/trickbot-trickleaks-data-analysis/