PDF malware analysis — malicious · 4b9d2a83f91f06bb

MALICIOUS

PDF

857.8 KB Created: 2011-04-28 10:05:05 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 2015351b345576455ad3be5a124847cb SHA-1: 5676daaa6ab02f5c405d7701b4c43af516a3105e SHA-256: 4b9d2a83f91f06bbec42be6874c05a40ccfa2961e34aec47d1e7c24276c016f9

62 Risk Score

Malware Insights

MITRE ATT&CK

T1204.001 Malicious Link T1204.002 Malicious File

The sample is a PDF document that exploits the CVE-2008-2551 vulnerability, indicated by the 'C6 Messenger DownloaderActiveX exploit' heuristic. This exploit likely facilitates the download of a secondary payload from the URL http://artisanballoonz.com/system/system.exe. The document body was unreadable, but the exploit and the presence of a suspicious executable 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.

Filename	Kind	Source	Size
`stream_002_off0000069e.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x69E	73272 bytes

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