PDF malware analysis — malicious · 65f87227100f4c48

MALICIOUS

PDF

126.8 KB

MD5: 768ebdd9557429e89564891492d9da26 SHA-1: c6e326e0519e335dc33a3b13f26844cb1355727a SHA-256: 65f87227100f4c487c2b74d6fc0db0c96e7b45a98c8a3f246cf5e20a6d55b125

226 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF contains embedded JavaScript that leverages two critical vulnerabilities, CVE-2009-4324 and CVE-2008-2992, to achieve code execution. The JavaScript itself is heavily obfuscated but appears to be designed to download and execute a secondary payload. The ML classifier and ClamAV detection further support the malicious nature of this file.

Machine Learning

Nyx PDF Classifier malicious score 0.9944

Heuristics 5

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (matched in decompressed stream)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (matched in decompressed stream)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `3ebc7d8d421aa8d6d916956defc4b905fefa25611b170279989dc1628df1e761`	pdf-javascript-stream	PDF /JS object 6 at offset 0x18B	6603 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.