Malicious PDF — malware analysis report

Static analysis result for SHA-256 8650ff975c13ab6c…

MALICIOUS

PDF

256.0 KB Created: 2011-04-27 02:52:56 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: b8974f3e422eb5bcf8516a37144b8eda SHA-1: 0ffea305f564855e9394cb0b6b8e8556d90acd45 SHA-256: 8650ff975c13ab6ced36ef02a1e5fc0809641241eb0135cf2a38b87fe9515f30
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link T1204.002 Malicious File

The PDF contains a critical heuristic indicating the CVE-2008-2551 exploit, which is used to download and execute a secondary payload. An embedded URL points to a suspicious executable file, 'system.exe', on the domain 'artisanballoonz.com'. The document body is heavily obfuscated and does not provide further clues.

Heuristics 2

  • 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.
  • 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://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_off0000039a.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x39A 73272 bytes