Singapore.
Just above my house, there’s a military airway so I can’t make anything out of this picture… It could be a C-17 or a KC-135R but some of my friends thought it could be civilian? I believe that most flights that use this airway usually flies from WSSL (Seletar) to WSAP (Paya Lebar).
I am a real noob at identifying aircraft far away so I thought maybe someone friendly here could help :)