The ornamental design for a hangersock, as shown and described.
FIG. 1 is a bottom, front perspective view of a hanger sock showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a top, front perspective view of the hanger sock of FIG. 1 shown during optional use with environmental subject matter indicated in broken lines.
The features shown in broken lines are portions of the hanger sock forming no part of the claimed design.