PDF malware analysis — malicious · 03ac4a10684bf64e

MALICIOUS

PDF

49.4 KB Created: 2011-04-13 09:58:26 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 7834eda08ded92e811f04b7fbc3ecff9 SHA-1: dae23547f7a3ea3b0c317b0e19f7266b192c74d6 SHA-256: 03ac4a10684bf64e84bbf797c25e88136b21ba4ac0287c3020e63a93e49b12a6

62 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF contains a critical heuristic indicating the presence of the CVE-2008-2551 exploit, which is designed to download and execute 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 exploit targets client execution, and the download mechanism aligns with a drive-by compromise.

Machine Learning

Nyx PDF Classifier suspicious score 0.2812

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_001_off00000734.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x734	73272 bytes

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