Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f13758e88aa693c…

MALICIOUS

PDF

52.2 KB Created: 2011-05-17 09:08:20 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: d7e9eb8647586b337991c461fee3ccf8 SHA-1: b4a3dd56ebd349c12432ba56a2159d8150dbea18 SHA-256: 8f13758e88aa693cb83bba8c4a868a556949c6229b801422a27e3fc2e108dbbb
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF contains a critical heuristic firing for CVE-2008-2551, indicating an exploit for the C6 Messenger DownloaderActiveX. An embedded URL points to a potential second-stage executable, 'system.exe', hosted on 'artisanballoonz.com'. This suggests the document's primary purpose is to exploit this vulnerability to download and run a malicious 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_off00001259.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1259 73272 bytes

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