PDF malware analysis — malicious · 01c7472a96dda77d

MALICIOUS

PDF

1.4 KB

MD5: 142561026f00e411b427df470f2eb5f9 SHA-1: 9f2f01d71fd7c39f272a48f147c07f141b856f41 SHA-256: 01c7472a96dda77d22a10c55ee7e4551f9e735d3fda2a04427b7610a490d3e41

268 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file contains embedded JavaScript that exploits the CVE-2009-4324 vulnerability, specifically targeting the media.newPlayer function. The script is heavily obfuscated but appears to be designed to download and execute a second-stage payload. The critical heuristic firings for PDF JavaScript exploit and CVE-2009-4324 confirm the exploitation attempt.

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-1828618 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-1828618
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` `6568129932d350bc0172a7ba5a248bb56d5a99bc03a58b66e5e7412e86ddddc9`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1275 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` `c245661ca6e71687cada70f0019754357fea065a13a8807d26642e81a43dd512`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x488	257 bytes
`combined_document_js_000.js` `97c32cf8a9bfc0f4eb95cd40f301be190e5ba2dbc0d3943f1295e0896cdd9376`	deobfuscated-js	combined document JavaScript streams at offset 0x160	1533 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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