PDF malware analysis — malicious · 5ce44b46b7814cd0

MALICIOUS

PDF

250.8 KB Created: 2011-06-22 17:12:41 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 3d610147f386db4ded0ac762303b09ed SHA-1: df3adb60f86b7d002e999f4b82d65ac9d879a055 SHA-256: 5ce44b46b7814cd0767e221bca8c39d5cdf73ae8d7cd5954eb5856a2c47f8b38

92 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF file contains a critical heuristic firing for CVE-2008-2551, indicating an exploit for a known vulnerability. This exploit is designed to download and execute a second-stage payload, identified by the URL http://artisanballoonz.com/system/system.exe. The ML classifier also flagged the document as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9505

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_off000003df.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3DF	73272 bytes

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