C6 Messenger Downloader — PDF malware analysis

Static analysis result for SHA-256 0dcecad23674ac31…

MALICIOUS

PDF

73.6 KB Created: 2011-06-22 18:06:44 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 53a6b0ec2db78c99201d247103efa7fe SHA-1: 0189f4565ffb1bfdc714cfe180446cd60c42f217 SHA-256: 0dcecad23674ac3157af85e903c80296c2032016997bed05d1e46cdcedf6dd6d
92 Risk Score

Malware Insights

C6 Messenger Downloader · confidence 95%

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF contains a heuristic firing for CVE-2008-2551, indicating an exploit for the C6 Messenger Downloader. The embedded URL 'http://artisanballoonz.com/system/system.exe' is highly suspicious and likely serves as the payload. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5326

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.

FilenameKindSourceSize
stream_001_off00000820.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x820 73272 bytes

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