C6 Messenger Downloader — PDF malware analysis

Static analysis result for SHA-256 266013c1a459609f…

MALICIOUS

PDF

276.8 KB Created: 2011-04-23 06:40:38 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: bf288065b6fdc46681ab70f7fec5f401 SHA-1: b3046915f490333093f7e244a273ebbd24bb6800 SHA-256: 266013c1a459609f3bb4d019ce5d438947c27c7ad36aa234a7342d0ff964965b
60 Risk Score

Malware Insights

C6 Messenger Downloader · confidence 90%

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a heuristic firing for CVE-2008-2551, indicating an exploit for the C6 Messenger Downloader. This exploit likely facilitates the download of a second-stage payload from the embedded URL http://artisanballoonz.com/system/system.exe. The presence of the DownloaderActiveX.cab URL further supports the downloader functionality.

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_018_off00002410.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2410 73272 bytes

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