PDF malware analysis — malicious · 3d21f1703b4d718e

MALICIOUS

PDF

311.7 KB Created: 2011-07-07 20:39:06 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 61341fc3e106c4eb589632a9c4272998 SHA-1: 124baf03f58e4655ae150b5ee53178362d5cc18e SHA-256: 3d21f1703b4d718ec0cd8258056b77cf92e355b218473c0200aec88d0538344f

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.001 Malicious Link/Object

The PDF contains a critical heuristic firing for the C6 Messenger DownloaderActiveX exploit, indicating it's designed to leverage this vulnerability. The embedded URL 'http://artisanballoonz.com/system/system.exe' is likely the location of the secondary payload downloaded and executed by the exploit. The document body was unreadable, but the exploit and URL strongly suggest a downloader pattern.

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_001_off00000404.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x404	73272 bytes

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