PDF malware analysis — malicious · 9ad556287e726b3a

MALICIOUS

PDF

21.4 KB

MD5: eb4668fd3007a574ad19c1e194f72df9 SHA-1: 3d45f7c9d26a45d9289c02d2fab4cc2291ad3269 SHA-256: 9ad556287e726b3a50ff3f2c722645d89c344dea5378c2dd60ed24fadec515d3

108 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The PDF document contains embedded JavaScript and triggers CVE-2009-4324 via the media.newPlayer annotation API. The embedded JavaScript, particularly in legacy_pdfkit_stage_000.js, appears to be obfuscated but is designed to execute malicious code. This exploit chain suggests the PDF is a dropper intended to download and execute further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

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. (identified after JavaScript deobfuscation)
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_obj0008_000.js` `0b8275758f3b5b8362d6a6b74b3df6055d327f514e1a0f1dc2cfacdec98a1235`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	2205 bytes
`legacy_pdfkit_stage_000.js` `630bbd87d4c991442612bbfc5d0e64a58d98100212c3f8e897f80b45684ffd16`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xAB8	1262 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `42025b552c7960b53abcd8cd732b01c8d109eccfdfefc352b9826c4d5807d414`	deobfuscated-js	cross-stage annotation API aliases at offset 0x1E7	81 bytes

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