Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0daa859e6c03f3…

MALICIOUS

PDF

872.0 KB Created: 2011-05-26 13:41:50 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: ab0afc844862452313b6a4c8903ee7a4 SHA-1: 75688b6862fe795466f417edb72c39a9cc2ec4c5 SHA-256: fb0daa859e6c03f3da9349b0a9bbaf6762a39aaa98ec80e89fa526756cb0315a
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic firing for CVE_2008_2551, indicating it exploits a vulnerability to download a secondary payload. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the download location for this payload. The document body was truncated and did not provide further context on the lure.

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_002_off000007b9.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7B9 73272 bytes