Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0a60bb4073eb62…

MALICIOUS

PDF

188.4 KB Created: 2011-04-22 21:26:22 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 87e1cf7b0eea1ab3da895d67551dbfd3 SHA-1: ee716bcbce1b928537e1e89dedd1da67e8dc8e9a SHA-256: ca0a60bb4073eb62a43a82366992734f568124476a1b2841411bd1fb9fad923f
60 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 C6 Messenger DownloaderActiveX. This exploit likely facilitates the download and execution of a secondary payload from the embedded URL http://artisanballoonz.com/system/system.exe. No document body text was available for further analysis.

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_off000003f7.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3F7 73272 bytes