https://software-download.microsoft.com/db/Win7_Ult_SP1_Portuguese_COEM_x32.iso?t=0fa70a45-1a53-477d-8424-11adc0f9daf9&e=1508008796&h=02cc57492a56e84b1bd77ebb73a009a8
Link will expire in 24 hours
Have a look at this thread:
For the time being, use this one: https://software-download.microsoft.com/pr/Win7_Ult_SP1_Portuguese_COEM_x64.iso?t=bb0f2623-89bd-4739-9ee0-334db67a80b0&e=1507984188&h=72c31bb2d79bab03effc24f43788ec54 (link will expire in 24 hours).