PDF malware analysis — malicious · 4c11a295c7ed690c

MALICIOUS

PDF

12.9 KB

MD5: 07212d998a985623eef725e0d8696770 SHA-1: 061ad0893d344a06df2f3b9d6a78fffeb97f97ed SHA-256: 4c11a295c7ed690c2798ec8543b968a5865fbf49a05bd6a256985908e9717058

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by heuristics as a stager for executing code. The critical ClamAV detection 'Pdf.Exploit.Dropped-94' strongly indicates a known exploit. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

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` `1178fcdcae969ef3a66add5d32f1db294583e4cfb2912f71f38fd1c965124015`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3183	331 bytes

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