PDF malware analysis — malicious · 441ffb5e2a31ecae

MALICIOUS

PDF

283.7 KB Created: 2011-06-22 17:06:09 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 63ab8ed60668706c90cdc9272ff4b954 SHA-1: 15fa29f7fa3ccec4c15e4fd0f73de00b7fb048de SHA-256: 441ffb5e2a31ecaeab74db61cf15d8131ee30e93aa0b697700718835f9e6344d

60 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The sample is a PDF file that contains a marker for the CVE-2008-2551 exploit, which is known to download and execute arbitrary code. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the secondary payload. The document body was unreadable, but the heuristic firing strongly indicates exploitation for client execution.

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_off000003d8.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3D8	73272 bytes

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