Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a5fd2c3fc2d8583…

MALICIOUS

PDF

485.0 KB Created: 2011-05-26 12:48:39 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 733a772b1537062d3e68ff62ef9b6105 SHA-1: 9e7d8cfa77b76c44a4685d4c884f15f030ff80e5 SHA-256: 8a5fd2c3fc2d85836c4429dfb11efc6e5f7d54f3355d64b008e04d3cf62ae9b5
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link

The PDF contains a marker for the CVE-2008-2551 C6 Messenger DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely hosts the secondary 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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