The Albiceleste icon is hopeful the South Americans can win their third World Cup at the expense of Joachim Low's men and hailed the performance of Javier Mascherano.
Joachim Low's men hugely impressed in the semifinals with a 7-1 win over Brazil, while Argentina needed penalties to see off Netherlands in their final-four encounter.
Nevertheless, Maradona believes the semifinal results could prove to be beneficial for Alejandro Sabella's side as he thinks Germany could get complacent.
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"The match against Germany will not be a mission impossible. It is not impossible to beat them," Maradona said during his show on Telesur. "The German egos will be enlarged by the 7-1 win over Brazil. Their overconfidence could be a good thing for Argentina."
The Argentina icon then went on to praise Javier Mascherano following his sublime performance against Holland on Wednesday - a showing he believes was vital given that Lionel Messi seemed "a bit tired".
"Argentina against Netherlands were Mascherano and 10 more players. He was like a pit bull out there on the pitch," Maradona added. "Messi was not at the level we have come to expect from him against Holland. I think that he felt a bit tired."