Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d6b4ecfbb48ea40…

MALICIOUS

PDF

325.3 KB Created: 2011-06-22 16:13:54 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 4e772e492121ee0e3615f45a388f27de SHA-1: 45d6981d19dbaff2f7d7a0711a217a78e0922046 SHA-256: 3d6b4ecfbb48ea40934f61ed7f02c941becfe6cb63792dde3e2940ad8874410f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link/Object

The PDF contains a critical heuristic firing for the CVE_2008_2551 exploit, which is known to download and execute arbitrary code. The embedded URL points to a suspicious executable file, suggesting a downloader or dropper functionality. The document body is heavily obfuscated and unreadable, providing no further context on the lure.

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_off000003c4.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3C4 73272 bytes