\[ \boxed { {\frac {\rm d}{{\rm d}x}}y \left ( x \right ) =-{\frac {\ln \left ( x \right ) -\sinh \left ( x \right ) {x}^{2}-2\,\sinh \left ( x \right ) xy \left ( x \right ) -\sinh \left ( x \right ) -\sinh \left ( x \right ) \left ( y \left ( x \right ) \right ) ^{2}}{\ln \left ( x \right ) }}=0} \]
Mathematica: cpu = 0 (sec), leaf count = 0 \[ \text {Hanged} \]
Maple: cpu = 96.767 (sec), leaf count = 24 \[ \left \{ y \left ( x \right ) =-x-\tan \left ( {\it \_C1}-\int \!{\frac { \sinh \left ( x \right ) }{\ln \left ( x \right ) }}\,{\rm d}x \right ) \right \} \]