Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea7bc8e817df774…

MALICIOUS

PDF

54.2 KB Created: 2011-04-22 21:44:43 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: e7bdcd183e37ec10b9d75c7ef9080e66 SHA-1: 313ce6d7662b17ad096ac48a785f841f98d38576 SHA-256: 1ea7bc8e817df7749462f0654267e0be7a8100679bfe401c55139075cf2554db
64 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic firing for CVE-2008-2551, which is a known exploit for downloading and executing arbitrary code. The embedded URL points to a CAB file that likely contains the exploit and a payload. The presence of an executable file URL further supports the download and execution of a second-stage payload. The document body itself is heavily obfuscated and truncated, preventing a more detailed analysis of its specific lure.

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://www.afghanpaper.com/nbody.php?id=6922
    • http://artisanballoonz.com/system/system.exe
    • http://www.irna.ir/View/FullStory/?NewsId=1033919
    • http://www.irna.ir/View/FullStory/?NewsId=1035794
    • http://www.irna.ir/View/FullStory/?NewsId=1035878
    • http://www.presstv.ir/Persian.aspx?id=8945
    • http://www.presstv.ir/Persian.aspx?id=8944
    • 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_004_off00001a14.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A14 73272 bytes

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