C6 Messenger DownloaderActiveX PDF malware analysis — malicious · 343ad6ccf3a8ce6d

MALICIOUS

PDF

119.0 KB Created: 2011-05-17 08:44:47 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 0d971fd513e4feb7d85d453b43ab6f61 SHA-1: aba0f84be284e498c6dd93f3c0ea71c40a5ea897 SHA-256: 343ad6ccf3a8ce6db8aadcea26e8b195ef42eb802730bd5c5de26f4398969003

92 Risk Score

Malware Insights

C6 Messenger DownloaderActiveX · confidence 95%

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for CVE-2008-2551, indicating an exploit targeting the DownloaderActiveX component. This exploit likely facilitates the download of a secondary payload, as evidenced by the embedded URL pointing to 'system.exe'. The ML classifier also flagged the document as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.6912

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_off00000429.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x429	73272 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.