Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c98ee6360af512d…

MALICIOUS

PDF

276.8 KB Created: 2011-05-17 22:52:53 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: 08063c3ed8df7820316c66d681bf99fb SHA-1: 367f433fe223246c8d7fa274a4d3662870caf477 SHA-256: 1c98ee6360af512d1e5b1faaf6c75e95e1a8e66317534d0854ce7b82b793b528
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic indicating the presence of the C6 Messenger DownloaderActiveX exploit (CVE_2008_2551). This exploit is designed to download and execute a secondary payload from a remote URL. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the download source for the malicious payload. 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_018_off00002410.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2410 73272 bytes