PDF malware analysis — malicious · 72613a34dff528c5

MALICIOUS

PDF

49.2 KB Created: 2011-04-27 02:59:24 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 7cd4cfc95b9b3e31b0caf73c99436660 SHA-1: 2a630f91549e44def4c8f71d1af9086e72cabb35 SHA-256: 72613a34dff528c5d3618c3c1d02e54278848e5f65d886f86fe7c7ce188dfed5

122 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF 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 payload from the URL http://artisanballoonz.com/system/system.exe. The ClamAV detection further confirms the malicious nature of the file as a dropper.

Machine Learning

Nyx PDF Classifier suspicious score 0.2843

Heuristics 3

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.
ClamAV: Pdf.Dropper.Agent-7426059-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7426059-0
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_off0000068d.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x68D	73272 bytes

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