For information on visas to enter Brazil, you may contact the corresponding section in the Ministry of Foreign Affairs:

http://www.portalconsular.mre.gov.br/estrangeiros/vistos-para-estrangeiros

For further information please consult the following link:

http://www.portalconsular.mre.gov.br/estrangeiros/quadro-geral-de-regime-de-vistos