PDF malware analysis — malicious · 82c7d7def0c737e1

MALICIOUS

PDF

12.6 KB

MD5: d9bf5c69bd1a7de630bf2954e102554a SHA-1: 60ec40ee1a8e80ea514d4b4395c867c1dae88fd3 SHA-256: 82c7d7def0c737e1ff530005f4ceb477ea6bf64523cb776b59839a62252ede20

146 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

This PDF file was flagged as malicious by a machine learning classifier and ClamAV with the signature Pdf.Exploit.Dropped-94. Static analysis revealed embedded JavaScript within the PDF's metadata and a separate JS stream, indicating an attempt to execute code. The presence of PDF_JAVASCRIPT and PDF_METADATA_EVAL_STAGER heuristics strongly suggests the file is designed to exploit a PDF vulnerability to run arbitrary code, likely downloading and executing a secondary payload.

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` `06a23becef722d0f22d154db87df80a8e9efa7f8c4eb9ba5c02d88d7d351854b`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3033	331 bytes

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