Malicious PDF — malware analysis report

Static analysis result for SHA-256 db9ee69219623699…

MALICIOUS

PDF

54.7 KB Created: 2011-07-07 23:56:24 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 32ae7528a2e2989cd1d6f1dbeabb92d1 SHA-1: ff6a99c262e3ff3ed38ffc0f0cbafd2ab47b5598 SHA-256: db9ee6921962369919924acb2367dff82303c16ef2c0335eeb7b350cbc349945
62 Risk Score

Malware Insights

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

The PDF file contains a marker for the CVE-2008-2551 exploit, which is known to download and execute secondary payloads. An embedded URL points to a suspicious executable file, 'system.exe', on 'artisanballoonz.com'. This suggests the primary intent is to leverage the exploit to deliver and run malware from the identified URL.

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.iribnews.ir/Default.aspx?Page=MainContent&news_num=227087
    • http://www.farsnews.com/newstext.php?nn=8903021701
    • http://www.iribnews.ir/Default.aspx?Page=MainContent&news_num=227089
    • http://www.iribnews.ir/Default.aspx?Page=MainContent&news_num=227098
    • http://www.presstv.ir/Persian.aspx?id=10147
    • http://www.iribnews.ir/Default.aspx?Page=MainContent&news_num=227078
    • http://www.presstv.ir/Persian.aspx?id=10143
    • http://www.presstv.ir/Persian.aspx?id=10149
    • 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_003_off00001c2a.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1C2A 73272 bytes

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