Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e3e769c12ebe6f5…

MALICIOUS

PDF

58.0 KB Created: 2011-04-27 02:49:10 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 9d0d643eb5d45408bce89481b1d94f5e SHA-1: 1b677285302682f909626d720aa206dd189d604b SHA-256: 9e3e769c12ebe6f5ccf8f91cc583cc2929ad8f560fdebfba1c76079c3ba788ad
62 Risk Score

Malware Insights

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

The sample is a PDF document that contains a heuristic firing for the CVE-2008-2551 exploit, which is known to download and execute arbitrary code. The embedded URL `http://c6.community.alice.it/download/DownloaderActiveX.cab#Version=1,0,0,1` likely points to the exploit payload. Additionally, another URL `http://artisanballoonz.com/system/system.exe` was extracted, which is highly suspicious and likely the second-stage payload. The document body contains numerous links to news articles, likely as a lure.

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://www.mehrnews.ir/NewsPrint.aspx?NewsID=1060633
    • http://artisanballoonz.com/system/system.exe
    • http://www.irna.ir/View/FullStory/?NewsId=1044676
    • http://www.irna.ir/View/FullStory/?NewsId=1044583
    • http://www.irna.ir/View/FullStory/?NewsId=1044772
    • http://www.farsnews.com/newstext.php?nn=8901200507
    • http://www.irna.ir/View/FullStory/?NewsId=1043727
    • http://www.farsnews.com/newstext.php?nn=8901200651
    • http://www.presstv.ir/Persian.aspx?id=9047
    • http://www.presstv.ir/Persian.aspx?id=9046
    • 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_off000028ac.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x28AC 73272 bytes

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