Playing in their fifth finals and ranked 36 by FIFA, Iran begin their campaign against Group B rivals Morocco on June 15 in Nizhny Novgorod.
They then travel to Kazan for a June 20 clash against former World Cup winners Spain, before concluding their group stage matches against Portugal on June 25.
The three-time Asian Cup winners easily qualified for their second successive World Cup, going unbeaten in 10 matches in their Asian group.
Iran lost 2:1 to Turkey in their last friendly on May 28, and have one last World Cup warmup against Lithuania on June 8.
Coached by Portugal’s Carlos Queiroz, who has also managed his national side, Iran are long-shots to make their first knockout stage of a World Cup.