Flag of Malaysia — vertical.
The Government forbids and/or discourages hanging the standard flag vertically (regardless of whether the canton is placed in the upper left of upper right).  See Symbols of National Greatness.  Nonetheless, the placement of the canton in the upper right corner is consistent with the 2:3 version of the vertical flag in the 2012 and 2016 Olympic flag manuals; see link below.
Own work. This vector image was generated programmatically from geometry defined in File:Flag of Malaysia (construction sheet).svg.

Orientation (with canton at upper right and crescent above the sun) as shown in the London 2012 Flags and Anthems Manual.
This vector image includes elements that have been taken or adapted from this file: