PDF malware analysis — malicious · c37bc5bd5c79edc5

MALICIOUS

PDF

49.8 KB Created: 2011-06-22 16:28:49 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 1a9a215916f5db2fb67b06193108095d SHA-1: b87c10541a3373a1f2f341ba19683f47e22a4aaf SHA-256: c37bc5bd5c79edc5dc805db982fca83b5eed72fb5733af37653203fcfb636a61

62 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that contains a critical heuristic firing for CVE_2008_2551, indicating an exploit for the C6 Messenger DownloaderActiveX. This exploit likely facilitates the download of a secondary payload from one of the embedded URLs, such as http://artisanballoonz.com/system/system.exe. The presence of multiple external URIs further supports the download and execution attack pattern.

Heuristics 3

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.
External URI info PDF_URI

PDF contains an external URL action
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://www.vije.javananeirani.ir/
- http://artisanballoonz.com/system/system.exe
- http://www.vije.javananeirani.ir/‬‬
- 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_002_off0000088f.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x88F	73272 bytes

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