Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9d3df527ee0b0ea…

MALICIOUS

PDF

52.2 KB Created: 2011-05-17 09:14:03 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 08b953919f44b6945ade1cda66a52455 SHA-1: 6d80c6ddd9d6a77f2b22a979cd55d1246095cfc6 SHA-256: b9d3df527ee0b0ea0e36aa159b01369db032356fba4b3eddaf7f50de6fa76901
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that exploits the CVE-2008-2551 vulnerability. This exploit is designed to download and execute a payload from a remote URL. The embedded URL points to 'http://artisanballoonz.com/system/system.exe', which is highly suspicious. The PDF structure and exploit indicate a downloader attack pattern.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://www.irna.ir/View/FullStory/?NewsId=889420
    • http://www.irna.ir/View/FullStory/?NewsId=889345
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1014879
    • http://www.mehrnews.com/fa/newsdetail.aspx?NewsID=1015017
    • 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_off000012ad.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12AD 73272 bytes

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