PDF malware analysis — malicious · 24781e78403e933f

MALICIOUS

PDF

119.0 KB Created: 2011-04-22 21:30:48 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: af9ef55a6dfcd9dcb0cd827a1b7c8851 SHA-1: f090236cb7ad71539c2198dad0ae1f40e955a0c7 SHA-256: 24781e78403e933f9932ff58399b8ef38a87c82c03fe7e2c4e80fb432c18e0b9

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF contains a marker for the CVE-2008-2551 exploit, which is known to download and execute arbitrary code. The embedded URL points to a CAB file, which likely contains the exploit code or a loader. The secondary URL, http://artisanballoonz.com/system/system.exe, is highly suspicious and likely the location of the downloaded payload. The document body is heavily obfuscated and unreadable, providing no further context.

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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