Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5a2a4acee951943…

MALICIOUS

PDF

946.5 KB Created: 2011-05-26 13:16:04 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 2a14ae329b9fef30f81b00114417dd1b SHA-1: 21403e47eaf44aa4865f31939425f4e134bb7841 SHA-256: d5a2a4acee951943816dfdb0c473a3cb4a92263f0f00ad7f494234b5ac2526ce
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link/Object

The PDF contains a critical heuristic firing for CVE_2008_2551, indicating an attempt to exploit a vulnerability via an ActiveX control. An embedded URL points to a potential executable payload. The document body is heavily obfuscated and does not provide direct clues to the user-facing lure.

Heuristics 2

  • 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.
  • 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://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_003_off0000123d.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x123D 73272 bytes

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