\documentclass[a4paper,12pt]{article}

\usepackage{tikz}

\begin{document}

  \begin{tikzpicture}
    \definecolor{pr0}{RGB}{210,60,34}
    \path[rounded corners=7pt, fill=pr0]
      (0,0) rectangle ++(4,4);
    \path[fill=white, draw=none, rounded corners=7pt, rotate=45]
      (2.5,0) rectangle ++(.5,1.8);
    \path[fill=white, draw=none, rounded corners=7pt, rotate=-45]
      (-.5,1.2) rectangle ++(.5,1.8);
    \path[fill=white, rounded corners=7pt]
      (2,1) rectangle ++(1.5,.5);
  \end{tikzpicture}

\end{document}