French security sources told the Hannoversche Allgemeine Zeitung (HAZ) that the group had planned five bomb attacks, including three at the stadium and two at a bus stop and a train station in the city centre.
Bombs were supposed to be smuggled into the stadium in an official vehicle or by someone with a ticket to the game.
The train station attack was supposed to be carried out seven hours later by a female member of the group, the paper reported.
Intelligence about the group reached German authorities just two hours before kick-off.
Half an hour later, Interior Minister Thomas de Maiziere decided to cancel the game – although he himself has so far been cagey about his reasons for doing so.
He has faced widespread online mockery for his choice of words - "part of the answer would only unsettle the public" - in explaining the cancellation.