This is a common scam that even experienced business people often fall for.
The fools even targeted me, a domain name lawyer. :)
Here is the text of their email:
We are the department of Asian Domain Registration Service in China. I have something to confirm with you. We formally received an application on April 19, 2013 that a company which self-styled "Hengtong Investment Co.,Ltd" were applying to register "muscovitch" as their Brand Name and some domain names through our firm.
Now we are handling this registration, and after our initial checking, we found the name were similar to your company's, so we need to check with you whether your company has authorized that company to register these names. If you authorized this, we will finish the registration at once. If you did not authorize, please let us know within 7 workdays, so that we will handle this issue better. Out of the time limit we will unconditionally finish the registration for "Hengtong Investment Co.,Ltd". Looking forward to your prompt reply.
Phone: +86-551 6512 0117
Fax: +86-551 6512 3308
Address:AnGao World Cities,No. 99,WangJiang West Road,HeFei,AnHui Province,China ShangHai Headquarters:
Address:No.11,Lane 788,Xiupu Road,Nanhui District,ShangHai,China"