PDF malware analysis — malicious · cee7f416f6fed89a

MALICIOUS

PDF

1.16 MB Created: 2011-05-26 13:14:13 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 925739390eb2048274ef91301408cee5 SHA-1: fdb05be791d0a425638c36779541719e22575cad SHA-256: cee7f416f6fed89aabdcecb3402e3fe109a5dc897380457172b28484050f737e

60 Risk Score

Malware Insights

The sample is a PDF document that exploits the CVE-2008-2551 vulnerability, commonly known as the C6 Messenger DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload from a remote URL. The heuristic firing directly indicates this exploit is present. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely hosts the secondary 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.

Filename	Kind	Source	Size
`stream_003_off00000a8f.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xA8F	73272 bytes

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