Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd732f84b69767f7…

MALICIOUS

PDF

56.8 KB Created: 2011-07-07 23:55:59 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 60d121f54b922810c6a8983c156eb6e7 SHA-1: 727ffe99f191b84d67e5994da9dc11ff4dedf9e6 SHA-256: dd732f84b69767f72713aac0e39cc8b576e5c33f9dbb84046ac2bcb6e454942b
62 Risk Score

Malware Insights

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

The sample is a PDF document that contains a critical heuristic firing for the C6 Messenger DownloaderActiveX exploit (CVE_2008_2551). This exploit is designed to download and execute a payload from a remote URL. The document body contains multiple benign URLs, but also an unknown reputation URL pointing to 'http://artisanballoonz.com/system/system.exe', which is highly suspicious and likely the payload delivery URL. The exploit targets a known vulnerability, indicating a malicious intent to compromise the user's system.

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.irna.ir/View/FullStory/?NewsId=1039388
    • http://www.farsnews.com/newstext.php?nn=8901171116
    • http://www.farsnews.com/newstext.php?nn=8901171312
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1058406
    • http://www.farsnews.com/newstext.php?nn=8901171386
    • http://www.presstv.ir/Persian.aspx?id=8997
    • http://www.presstv.ir/Persian.aspx?id=8989
    • http://www.presstv.ir/Persian.aspx?id=8993
    • 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_006_off00002449.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2449 73272 bytes

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