PDF malware analysis — malicious · bca9197a71bf9ce9

MALICIOUS

PDF

849.0 KB Created: 2011-05-17 08:56:54 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: cf13628ba5e0a625be44176bdb904c98 SHA-1: 2d898b7eee6bc229d75a1c9b037a1279f40ea06c SHA-256: bca9197a71bf9ce9b76a83ed8cfde511ee2f5d1d162340562aac04c4bef60742

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204 User Execution: Malicious File T1059 Command and Scripting Interpreter

The PDF file contains a marker indicating exploitation of the CVE-2008-2551 vulnerability, which is known to facilitate the download of malicious payloads. The embedded URL 'http://artisanballoonz.com/system/system.exe' likely serves as the secondary stage, aiming to download and execute a Windows executable. The document body was unreadable, but the heuristic firing is sufficient evidence for the 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_001_off00000418.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x418	73272 bytes

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