This app is part of the seed and there aren't found similar apps on marketplaces

MD5	Package Name	Fingerprint	Source	Detection date
51d6e1036452c2004471340c531d9f40	com.hsj.cbook4	6E13B5C2F9431BCF88518A5599584ACD	virustotal	2013-10-21	View on Virustotal