The Central American nation are not expected to make much of an impact in Brazil, with the majority of bookmakers offering odds of at least 150/1 that they go all the way.
However, Manchester United striker Hernandez has claimed that his nation are not heading to the tournament just to make up the numbers.
"There is no point going to a competition and just thinking we are going to play three games," the 25-year-old told reporters. "Our heads and minds are on reaching the final. Every national side has the same possibility to win the World Cup. It is a very short competition and anything could happen."
Mexico have been drawn in the same group as hosts Brazil, as well as Croatia and Cameroon.