PDF malware analysis — malicious · 95b2bbe4c37ad33b

MALICIOUS

PDF

323.1 KB Created: 2011-04-13 09:26:36 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 117d45846dd3c09d0e345e7ea0b509a0 SHA-1: 7a5edbc7e2cd70a8c370ce36f0f0a2027f62816f SHA-256: 95b2bbe4c37ad33b547eecfb3c65c7cee33691192c3859d9216adfe3c1496bf4

60 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The sample is a PDF document that contains a critical heuristic firing for the C6 Messenger DownloaderActiveX exploit. This exploit is designed to download and execute a second-stage payload from a remote URL. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely serves as the download location for the malicious executable.

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_off00000418.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x418	73272 bytes

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