Malicious PDF — malware analysis report

Static analysis result for SHA-256 d96357fb4ca334b2…

MALICIOUS

PDF

485.0 KB Created: 2011-05-17 08:43:11 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 761ec7f7f22995f3fd0fdfb715e97988 SHA-1: 909ae6d45d2867a544b2fef4cd357980cec01320 SHA-256: d96357fb4ca334b2a9a72fa7555ea9653e5d1e180171233383c5295e6a2fa33b
60 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains a marker for the CVE-2008-2551 C6 Messenger DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload from a remote URL. The embedded URL http://artisanballoonz.com/system/system.exe is flagged as unknown reputation and is the likely target for the downloaded 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_002_off0000072f.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x72F 73272 bytes

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