PDF malware analysis — malicious · 6de1230ed49d7d36

MALICIOUS

PDF

2.3 KB

MD5: 551ebf73199ff099a956c439abeae16b SHA-1: e1a074089c8f3cab680e27630bce25c2ee239fdb SHA-256: 6de1230ed49d7d36fc1aeff05bc2e8edb9f58d4d8f6db600328c45dc981a4103

268 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file contains obfuscated JavaScript that attempts to exploit the CVE-2009-4324 vulnerability via the media.newPlayer object. The script is heavily obfuscated and uses unescape() to decode malicious content, indicating an attempt to bypass detection. The primary goal appears to be arbitrary code execution on the victim's machine.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

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)
PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER

PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `e076af8e1fbc0be66076cc696bcadf8831c10e25a1fe85a2893cb0d868a808ee`	pdf-javascript-stream	PDF /JS object 6 at offset 0x18F	1310 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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