Malicious PDF — malware analysis report

Static analysis result for SHA-256 a20c090926a7de9c…

MALICIOUS

PDF

51.5 KB Created: 2011-04-27 03:31:38 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 3ef3fd5f066d31ece9adbe43f452dbdf SHA-1: ad895842fbacac50bf46d4e802e154f2f756fc18 SHA-256: a20c090926a7de9c366ea0e6010df4fb84ced893f38146a3013b40f6049f71eb
62 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. This exploit likely facilitates the download and execution of a secondary payload, as evidenced by the embedded URL pointing to 'system.exe'. The presence of multiple benign news URLs suggests a potential lure or distraction tactic.

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=840728
    • http://www.farsnews.com/newstext.php?nn=8809221138
    • http://www.irna.ir/View/FullStory/?NewsId=839237
    • http://www.farsnews.com/newstext.php?nn=8809221807
    • 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_off00000fe2.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xFE2 73272 bytes

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