Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf05c04114464ef6…

MALICIOUS

PDF

55.3 KB Created: 2011-06-22 18:00:49 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 1c074475dae4cf92fa8294f8608bb58b SHA-1: b59b2c19f626f6f9fbab216cb969914e3fe5979c SHA-256: cf05c04114464ef6534569793dad63f958f4c1f99bef05b6bd289225e18f8f2d
62 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for the CVE_2008_2551 exploit, indicating it attempts to download and execute a payload. The embedded URL 'http://artisanballoonz.com/system/system.exe' is marked as unknown and is the most likely target for the exploit. The document body and other extracted URLs appear benign, suggesting the primary malicious function is the exploit.

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.presstv.ir/Persian.aspx?id=10346
    • http://www.presstv.ir/Persian.aspx?id=10348
    • http://www.presstv.ir/Persian.aspx?id=10349
    • http://www.farsnews.com/newstext.php?nn=8903101737
    • http://www.iribnews.ir/Default.aspx?Page=MainContent&news_num=228473
    • http://www.irna.ir/View/FullStory/?NewsId=1149716
    • http://www.presstv.ir/Persian.aspx?id=10350
    • 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_005_off00001e57.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1E57 73272 bytes

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