PDF malware analysis — malicious · fcd5ec72a9deff98

MALICIOUS

PDF

330.3 KB Created: 2011-06-22 18:20:07 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: ed70d3a5fcf5a4245c30f866ad6692c5 SHA-1: a63a867440ab4e6da3875f661f9852f9b417e276 SHA-256: fcd5ec72a9deff98a56af9939042d3973007ef024c65bfd34a26a5a4b26e7acc

62 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF contains a critical heuristic firing for CVE_2008_2551, indicating an exploit for the C6 Messenger DownloaderActiveX. This exploit likely facilitates the download of a secondary payload from the embedded URL http://artisanballoonz.com/system/system.exe. The PDF structure itself does not contain readable content, but the exploit and the unknown reputation of the download URL strongly suggest a malicious intent to compromise the user's system.

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_off000003db.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3DB	73272 bytes

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