Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6c2e55054422019…

MALICIOUS

PDF

57.6 KB Created: 2011-06-22 16:32:19 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 71cbabb766bfd52997671efc280e6da3 SHA-1: c52391fd97852a35986cd43888f496b56f3a6cc8 SHA-256: c6c2e55054422019d7f20e96a5c1507f735a991b4e834ae6913d6d6fb6779b5b
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF document that exploits the CVE-2008-2551 vulnerability, indicated by the 'C6 Messenger DownloaderActiveX exploit' heuristic. This exploit is designed to download and execute a secondary payload. The embedded URL 'http://artisanballoonz.com/system/system.exe' is highly suspicious and likely the location of this payload. The PDF also contains other embedded URLs, but one points to a CAB file which may contain the ActiveX exploit.

Heuristics 3

  • C6 Messenger DownloaderActiveX exploit critical CVE exact CVE_2008_2551
    PDF stream bytes contain HTML/ActiveX content configuring the vulnerable C6 Messenger DownloaderActiveX control with propDownloadUrl and propPostDownloadAction=run. This is the published exploit shape for CVE-2008-2551.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://artisanballoonz.com/system/system.exe
    • http://www.farsnews.com/newstext.php?nn=8903050230
    • http://www.farsnews.com/newstext.php?nn=8903041749
    • http://www.farsnews.com/newstext.php?nn=8903050058
    • http://www.presstv.ir/Persian.aspx?id=10193
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1089607
    • http://www.presstv.ir/Persian.aspx?id=10194
    • http://beta.iribnews.ir/VMK/Body.aspx?id=672667
    • http://beta.iribnews.ir/VMK/Body.aspx?id=672670
    • http://c6.community.alice.it/download/DownloaderActiveX.cab#Version=1,0,0,1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00002727.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2727 73272 bytes

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