PDF malware analysis — malicious · 1d2c77572d05a659

MALICIOUS

PDF

849.0 KB Created: 2011-06-22 17:05:16 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: b39ce6ef03cf1c85fa51ae6beb3abadb SHA-1: c1bd55564fa3e38df20d578e3b680355dcb6bf9e SHA-256: 1d2c77572d05a65966b61b917b2d244fca8fe86141c51825a7bde34d1cf30a97

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.001 Malicious Link/Script Execution: User Execution: Malicious Link T1204.002 Malicious Link/Script Execution: User Execution: Malicious Script

The sample is a PDF document that contains a critical heuristic indicating the CVE-2008-2551 exploit for DownloaderActiveX. This exploit is designed to download and execute a payload from a URL. The embedded URL http://artisanballoonz.com/system/system.exe is likely the second-stage payload. The document body is heavily obfuscated and does not provide further clues.

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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