Exploit Sample for Win32/CVE-2012-0158

Published: 2013-06-01
Last Updated: 2013-06-01 19:31:49 UTC
by Guy Bruneau (Version: 1)
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Two weeks ago I posted a diary on a report published by Trend Micro on a spear-phishing emails campaign using malicious Word documents exploiting a Microsoft Office vulnerability (CVE-2012-0158).

We received a sample of a Word document exploiting CVE-2012-0158 which I took a look at. The file itself is pretty small (325Kb) and based on VirusTotal's MD5 hash report, 30/47 scan engines detected and confirmed it exploits CVE-2012-0158. I used the malwr sandbox to get a better look on how this Word document behaves while running on a Windows system. The one thing I noticed is Yara was positive to check if the file is running in a virtual machine.

[1] https://isc.sans.edu/diary/Safe+-++Tools%2C+Tactics+and+Techniques/15848
[2] https://www.virustotal.com/en/file/2cf2fbe92004b98b8dd5ff4631787dcf8241723020f1216b89a1a706addf9347/analysis/
[3] http://securityresponse.symantec.com/security_response/writeup.jsp?docid=2005-031911-0600-99&vid=17499
[4] http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-0158
[5] https://malwr.com/analysis/NmI3NjQ1MmI5ODhkNDliMmEwYTlmNjRkYTA0MzZkMzU/
[6] http://code.google.com/p/yara-project/


Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu

Keywords: CVE20120158
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