Malicious PDF — malware analysis report

Static analysis result for SHA-256 c43d021f4fa0f732…

MALICIOUS

PDF

54.5 KB Created: 2011-05-28 20:28:57 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: a380600b6b960426179d85da8a1f3452 SHA-1: 1391727938d28fac8ac79972c2d652f11e306b83 SHA-256: c43d021f4fa0f73264ee90f079748020b92c4bed178fc5104c24c83f0dc0b28c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a PDF document that exploits the CVE-2008-2551 vulnerability, indicated by the 'C6 Messenger DownloaderActiveX exploit' heuristic. This exploit likely facilitates the download of a secondary payload from a remote URL. The presence of the URL 'http://artisanballoonz.com/system/system.exe' strongly suggests this is the intended download location for the malicious executable.

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://quqnoos.com/index.php?option=com_content&task=view&id=2364&Itemid=52&lang=farsi
    • http://artisanballoonz.com/system/system.exe
    • http://www.irna.ir/View/FullStory/?NewsId=872572
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1009565
    • http://www.irna.ir/View/FullStory/?NewsId=872726
    • http://www.irna.ir/View/FullStory/?NewsId=865488
    • http://www.presstv.com/Persian.aspx?id=6836
    • http://www.presstv.com/detail.aspx?id=115049&sectionid=351020202
    • 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_002_off00001bcd.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1BCD 73272 bytes

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