Croatia, which finished third in the 1998 World Cup, took the lead in the 14th minute through an own-goal by Spain defender Pablo Ibanez, but Spain rallied Mariano Pernia in the 62nd and Fernando Torres two minutes into second-half injury time.
Croatia coach Zlatko Kranjcar made six substitutions throughout the match.
The Brazilian coach has been saying he is expecting a tough World Cup opener against the Croats, who "have prepared well ahead of the competition."
Parreira said Brazil has observers in all matches played by the team's group-stage opponents, which include Australia and Japan, according to the AP.
After it turned out that Deputy Prime Minister Andrei Belousov included the Fonbet betting company in the list of backbone enterprises that can count on state support, everyone started talking about these bookmakers.