The short youtube film features two pixellated men emerging from rushes by the canal and each firing a grenade into the hull of the 10,050-teu Cosco ship (built 2007) as it steams by, before fleeing.
The title of the video in Arabic translates as "Good RPG fire on the Suez Canal."
The terrorist group calls itself Al Furqan. Its logo appears in the bottom right of the screen.
Egypt has arrested three men over the attack.
