Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a1625448da17e3b…

MALICIOUS

PDF

325.3 KB Created: 2011-04-16 14:07:30 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 6e124ee415f2d1d8d33437ef81adf17b SHA-1: b870535653971306b71dfb47335b8c3f355f2e1c SHA-256: 8a1625448da17e3b42052155e1d7223897554f7ac711593907c5f4ed00daff08
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF contains a critical heuristic firing for the CVE-2008-2551 exploit, which is known to download and execute arbitrary files. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the download location for a malicious executable. The document body was unreadable, but the exploit and URL strongly indicate a downloader attack pattern.

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_off000003c4.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3C4 73272 bytes