PDF malware analysis — malicious · fdd72c03194f0647

MALICIOUS

PDF

12.7 KB

MD5: 02d79f69e681139136efcf07ba26ec04 SHA-1: 183cffe287dee027e2863558419f94cc02aa12b5 SHA-256: fdd72c03194f064740bc2da84cafbbb50e06fb4bea6b4480bce9114bc6d5f5dc

146 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

This PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-94'. High-confidence firings indicate the presence of a JavaScript eval stager within the PDF's metadata, designed to decode and execute embedded JavaScript. This JavaScript is likely responsible for triggering an exploit and downloading a secondary payload, as suggested by the 'ML_NYX_PDF_MALICIOUS' score and the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics. No specific malware family could be identified.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
PDF metadata JavaScript eval stager high PDF_METADATA_EVAL_STAGER

PDF JavaScript reads document metadata fields such as title, subject, or producer, decodes character data with parseInt/String.fromCharCode style helpers, and evals the recovered stage. This is a high-signal exploit-kit staging pattern.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0076_000.js` `5f6853830374cacf47d0ef058014091c19043d7eaa9df88d5fa4f76f027b783c`	pdf-javascript-stream	PDF /JS object 76 at offset 0x308E	331 bytes

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