Malicious PDF — malware analysis report

Static analysis result for SHA-256 b274607c2940053a…

MALICIOUS

PDF

371.3 KB Created: 2011-06-22 16:35:41 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 462ae0443cbedba20da788361257b10a SHA-1: c3fc8ecf9a9324dfab1cc4ada2badbf62da2b9bb SHA-256: b274607c2940053a32d035aa3605e4542711c3502b81b53a1adb1be2f30f0b3a
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for CVE_2008_2551, indicating it exploits a known vulnerability. The embedded URL 'http://artisanballoonz.com/system/system.exe' is flagged as unknown reputation and likely serves as the download location for a secondary payload. The document body was unreadable, but the exploit and download URL strongly suggest a malicious intent.

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_off00000827.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x827 73272 bytes