Pdf.Dropper.Agent-7233416-0 PDF malware analysis — malicious · 17524ee2875f6b44

MALICIOUS

PDF

1.4 KB

MD5: 80a4c63f8a0cf5bb3351a3b656712544 SHA-1: e91015afc58a5064cf4f058fe50fdf9ebc04d4af SHA-256: 17524ee2875f6b44358a8bce86ff23d20651a43eadfa4242e1ddfc248f2e6827

268 Risk Score

Malware Insights

Pdf.Dropper.Agent-7233416-0 · confidence 95%

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded JavaScript that leverages the CVE-2009-4324 vulnerability via the media.newPlayer method. The script is heavily obfuscated but appears to construct a large string and then attempts to exploit the vulnerability. This is consistent with a dropper mechanism designed to download and execute further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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: Pdf.Dropper.Agent-7233416-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7233416-0
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `78d35bb1b13ee999debfb8de36680a1e2a33cb9c72968ab25337291565a662ad`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1263 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `ed4625d05dc594559dcf498f8c073757db8f0f9c8755aea2d602490541c55d49`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x484	250 bytes
`combined_document_js_000.js` `c9389822a4bda7efcb2bc0e27004055dd84df59b9d4285293c5e2c520c964f5e`	deobfuscated-js	combined document JavaScript streams at offset 0x160	1514 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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