PDF malware analysis — malicious · 1b93b99c4cd8a8a2

MALICIOUS

PDF

119.0 KB Created: 2011-05-26 13:26:18 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 1af2db4e8ea196a71e4d78d2991386da SHA-1: b0ab40b41cebb2eabc740cdcd373ceda4fe3a07b SHA-256: 1b93b99c4cd8a8a2047b36505ccf9f5ce09967e74f78922c172903f0eb1c7953

60 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for CVE_2008_2551, indicating exploitation of the C6 Messenger DownloaderActiveX vulnerability. This exploit is designed to download and execute a secondary payload from a specified URL. The embedded URL http://artisanballoonz.com/system/system.exe is flagged as unknown reputation and is the likely source of the malicious payload.

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_off00000429.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x429	73272 bytes

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