Malicious PDF — malware analysis report

Static analysis result for SHA-256 b98c35a64490fc8b…

MALICIOUS

PDF

52.2 KB Created: 2011-04-22 21:44:59 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 4f31ff6fb05131a3a21a3a8a102ee7c2 SHA-1: 6476e677b4fb1608e4cb7387fcd32e47920dae4a SHA-256: b98c35a64490fc8b078559778f533bb212af96b3857122a71b45e61781588ff7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a marker for the C6 Messenger DownloaderActiveX exploit (CVE_2008_2551). This exploit is designed to download and execute a secondary payload from a specified URL. The presence of the exploit and an associated executable download URL indicates a malicious intent to compromise the user's system. The embedded URL points to a CAB file which likely contains the ActiveX control used in the 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.irna.ir/View/FullStory/?NewsId=889420
    • http://www.irna.ir/View/FullStory/?NewsId=889345
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1014879
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1015017
    • 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_001_off000012ad.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12AD 73272 bytes

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