Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9f2dcee69fd85d7…

MALICIOUS

PDF

49.1 KB Created: 2011-05-26 12:49:51 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 6e0f484d719fbbab5c167ad063068305 SHA-1: 53d42c78fb7ce68b19ddaf0b67a27e50ef79e384 SHA-256: b9f2dcee69fd85d7efd087b5853427e2d8b80ba6a7bf1cf648898727e14eaf63
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF contains a marker for the CVE-2008-2551 C6 Messenger DownloaderActiveX exploit. The embedded URL 'http://artisanballoonz.com/system/system.exe' is highly suspicious and likely serves as the download location for a malicious executable. The exploit likely facilitates the download and execution of this payload.

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_off000005fd.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5FD 73272 bytes