Federal investigators are scrutinizing how Hossein Shamkhani, son of a top advisor to Iran’s Supreme Leader, allegedly moved billions of dollars through major Wall Street institutions. The US Justice Department is examining whether global banking networks, including JPMorgan Chase and Standard Chartered, facilitated massive sanctions-evading oil sales.
The Treasury Department sanctioned Shamkhani in July 2025, but prosecutors escalated the matter in March 2026 by filing civil forfeiture complaints targeting over $15.3 million. These funds are allegedly tied to illicit oil operations supporting Iran’s Revolutionary Guard Corps. While neither bank has been accused of knowingly facilitating these activities, the investigation highlights significant compliance risks for financial institutions serving as conduits for sanctioned entities.
Shamkhani’s network reportedly obscured crude oil origins and routed payments through intermediary jurisdictions to access dollar-denominated services. Concurrently, a separate DOJ probe is investigating the Binance cryptocurrency exchange for processing over $1 billion in alleged Iran-linked transfers. This dual focus on traditional banking and digital assets signals intensified regulatory enforcement against sanctions evasion across both sectors.