PDF malware analysis — malicious · 3b7798a41e305559

MALICIOUS

PDF

49.2 KB Created: 2011-05-26 14:38:00 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: a64572a4471aa06d507fb2543c52fc4a SHA-1: 6e75fe1214dd74431ba1973f91b232e1415434fc SHA-256: 3b7798a41e305559d98f49e7abc8349d341915354a8eff0944d004faaeb1dfa2

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 files. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the secondary payload. The document body was unreadable, but the heuristic firing strongly indicates exploitation.

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_off00000641.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x641	73272 bytes

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