Malicious PDF — malware analysis report

Static analysis result for SHA-256 b03bec73aff84cc3…

MALICIOUS

PDF

53.6 KB Created: 2011-04-27 03:39:34 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 8202fc1462ca213f54f1e45541420209 SHA-1: 3114ccace9d7c37f3ccfcb76dcc81d1a723c9acd SHA-256: b03bec73aff84cc36b4b097475255b7915498aacb9cec3a818d491926ec13f48
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic indicating the CVE-2008-2551 DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload from a remote URL. The presence of an embedded URL pointing to 'system.exe' on 'artisanballoonz.com' strongly suggests this malicious intent. The exploit likely leverages the ActiveX control to fetch and run the executable.

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=843295
    • http://www.farsnews.com/newstext.php?nn=8809231839
    • http://www.irna.ir/View/FullStory/?NewsId=842976
    • http://www.irna.ir/View/FullStory/?NewsId=840723
    • http://www.irna.ir/View/FullStory/?NewsId=843385
    • http://www.irna.ir/View/FullStory/?NewsId=842924
    • 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_off00001828.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1828 73272 bytes