PDF malware analysis — malicious · b2ef4021fa411bcb

MALICIOUS

PDF

373.1 KB Created: 2011-05-26 13:03:30 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: ca42f4f58e2394ce416eacb3ab9e8770 SHA-1: d0b33167f1ba3f98624701b9a908e512735f71c7 SHA-256: b2ef4021fa411bcbd8241fef8252bd8dc2f4e7c6e15ad1ff6e8f4fe6c4c296ee

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF contains a critical heuristic firing for CVE-2008-2551, indicating an exploit for the C6 Messenger DownloaderActiveX. This exploit is designed to download and execute a payload. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the payload delivery point. The document body is heavily obfuscated and does not provide 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_off0000063b.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x63B	73272 bytes

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