PDF malware analysis — malicious · a8109112bfb4c89e

MALICIOUS

PDF

336.1 KB Created: 2011-06-22 16:15:56 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 51d1ae2e7ac8463b8848a8d3cb416e9c SHA-1: ef004f39a28cdb7bd5b4567a9aa397fab8b8615f SHA-256: a8109112bfb4c89e1a8a793d7291b0d9a3b2f021c5104ec8f7c3dd3bb3a3e514

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The sample is a PDF document that contains a marker for the CVE-2008-2551 C6 Messenger DownloaderActiveX exploit. This exploit is known 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 secondary 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_off000003d1.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3D1	73272 bytes

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