They are not ISIS they are just attention seeker they want to get the attention of international group called "ISIS" to have fund to their activities they are the Maute groups the one who plant a bomb on night market davao hoping that after the declaration president duterte will force all his trops to kills those animals who killed 9 christians already.
They are not just attention seekers they really are now a part of islamic states or isis actually the one who leads the terrorists right now is the current leader of isis in Southeast Asia