DownloaderActiveX PDF malware analysis — malicious · 125e0781358ac3d1

MALICIOUS

PDF

304.4 KB Created: 2011-04-13 09:04:35 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 3.0.015 (http://www.tcpdf.org))

MD5: eb90e1445ba42e289f2491cc74dcf061 SHA-1: 8fb577f6d850c0ad1120139594782fa2db89edb1 SHA-256: 125e0781358ac3d1973102ac3c96bd8537056a0aa65e1ec96407ab1dcbb81d1c

62 Risk Score

Malware Insights

DownloaderActiveX · confidence 90%

MITRE ATT&CK

T1203 Exploitation for Client Execution

The sample is a PDF file that contains a heuristic match for the CVE-2008-2551 DownloaderActiveX exploit. This exploit is designed to download and execute a secondary payload from a remote URL. The embedded URL http://artisanballoonz.com/system/system.exe is highly suspicious and likely hosts the malicious payload.

Machine Learning

Nyx PDF Classifier clean score 0.0409

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_013_off00002847.bin` `80ce46be3b4d5733393d911e720cc341eac961413bc8841086c1643fee9fc14b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2847	73272 bytes

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