PDF malware analysis — malicious · a3a2bc3405477ea5

MALICIOUS

PDF

428.4 KB Created: 2011-06-22 17:17:39 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: 6621100c52a9de6d61f5d0f7c3dee86d SHA-1: 74fe9d567316b3eca69b6df21be0d7073d8bdd07 SHA-256: a3a2bc3405477ea53a1fd050b281b877f7e6e6a0e6c20995557d378eabab6b1d

60 Risk Score

Malware Insights

MITRE ATT&CK

T1204.001 Malicious Link/Object

The sample is a PDF document that contains a critical heuristic indicating the CVE-2008-2551 C6 Messenger DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely hosts the malicious payload. The other embedded URL was confirmed benign.

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_off00000436.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x436	73272 bytes

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