PDF / .TMP malware analysis — malicious · 018ce7fd78123d05

MALICIOUS

PDF / .TMP

332.3 KB

MD5: 69db0fb893453fa7d8bdd3de2276fe95 SHA-1: ab9d538b39a96831676dde574aba001742ce00c4 SHA-256: 018ce7fd78123d056e7a55378dec555efa4322ddd947d4436057c045782bc4ad

176 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious Link

The PDF file contains embedded JavaScript that leverages the CVE-2009-4324 vulnerability via the media.newPlayer method. The script is heavily obfuscated using String.fromCharCode and loop constructs, indicating an attempt to hide its malicious intent. The primary goal appears to be the execution of arbitrary code, likely for downloading and executing a further stage.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 6

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.
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.
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape 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_obj0007_000.js` `deb2cbe5418647289f165b996811688f6eabe7b0d4a8ddaba508a6973dd8e48c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x37B	953 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `59bbd607f3c2b5ec03961a94020c40651447df0ffd2415991ac82f905c02f53d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x37B	196 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`combined_document_js_000.js` `a175ca1e3899e93337929707b6b8bdaeefd26591a0eb51a33d929ae6f3c7ed2f`	deobfuscated-js	combined document JavaScript streams at offset 0x37B	1150 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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