Rafael van der Vaart scored from the penalty spot in the first half before Cristian Gonzales replied for last season’s Indonesian runners-up. Jacques Zoua added a second for the Red Shorts early in the second half prior to Sunarto again levelling for Arema.
Hamburg boss Bert van Marwijk said: "We looked flat after half an hour because we'd had to come a long way (from Germany), so I can't be too unhappy."
Hamburg will now travel to Abu Dhabi to take on Dutch club Vitesse Arnhem in a midseason friendly on Saturday.
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