Malicious PDF — malware analysis report

Static analysis result for SHA-256 e271217c12881a65…

MALICIOUS

PDF

402.6 KB Created: 2011-05-17 09:14:20 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))
MD5: e82d1a56573b2c3cc97f32a359ddb99f SHA-1: 9d6733842bdbc4d5509e4874bfad5f941da99b48 SHA-256: e271217c12881a656dbcb1141d98ab5ee46dec18245137eeddf39208b12cbd04
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a critical heuristic indicating the CVE-2008-2551 exploit for C6 Messenger DownloaderActiveX. This exploit is designed to download and execute a secondary payload. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely hosts this payload. The document body was unreadable, but the exploit and URL strongly suggest 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_off000003e2.bin
80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E2 73272 bytes