PDF malware analysis — malicious · dbc57dabe3db68dc

MALICIOUS

PDF

324.5 KB Created: 2011-05-28 19:42:39 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 2fd670c2e4df0e72c3fbd39f13d82ffc SHA-1: 695958f8de1b2605c028be02d34a6837a8c7367b SHA-256: dbc57dabe3db68dcf44d2fe384b235c8d0b53a325a1f2994b7b879ee10acaf77

62 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The critical heuristic firing for CVE_2008_2551 indicates the file is designed to exploit this vulnerability. The embedded URL http://artisanballoonz.com/system/system.exe is likely the source of the second-stage payload. The PDF structure and lack of readable document body text suggest a malicious document designed to exploit a known vulnerability rather than a social engineering lure.

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_off000003bf.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3BF	73272 bytes

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