Malicious PDF — malware analysis report

Static analysis result for SHA-256 2454c67f0e55e076…

MALICIOUS

PDF

276.8 KB Created: 2011-04-13 13:58:17 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 78285bb80fb1717285ea03e23a4c8eb9 SHA-1: b7f602c1ea382be51eb0d38ecb906d09ad481660 SHA-256: 2454c67f0e55e0764e45b2bf7550e665cb8065264177bea7d27f3daa0459ab99
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF contains a marker indicating the CVE-2008-2551 DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload from a specified URL. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely hosts the malicious payload.

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_018_off00002410.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2410 73272 bytes

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