PDF malware analysis — malicious · d0bc62076ba152d0

MALICIOUS

PDF

43.2 KB

MD5: fbd6865d8ae68b00eaa61aa0c47f9c2d SHA-1: 487a5192af66c54c8daa6734bad20e71eadb0a01 SHA-256: d0bc62076ba152d0cc65abbc173f850ce3ce45e47a92c791e2d1b6761aa92596

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF sample contains embedded JavaScript and triggers the CVE-2009-4324 vulnerability via the media.newPlayer function. The embedded JavaScript, particularly in legacy_pdfkit_stage_000.js, appears to be obfuscated but is designed to execute further malicious code. This indicates a likely attack pattern involving exploiting a PDF viewer vulnerability to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `915b030b580fb55d667ed1410cda7d58a742968ee44fcf47fad6ec464fcda1cc`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1E7	2221 bytes
`legacy_pdfkit_stage_000.js` `e25eb9dea927fc4a67324232040e7bccd1874be12a367fce24d0ca6ae7a3286e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xAC8	2744 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.