PDF malware analysis — malicious · 7eb2bee6f9b400a7

MALICIOUS

PDF

12.5 KB

MD5: 331fd1decfdbe742b375e23ae4910fb5 SHA-1: 474f73c023aa5ffc37ccc4b42ff6e09aa8a2de2a SHA-256: 7eb2bee6f9b400a7a8376bf54520a38c9bc28dcb9c83914ee08fe5b81e3c77aa

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, flagged by multiple heuristics as a stager and exploit. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Pdf.Exploit.Dropped-94' ClamAV signature.

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` `6d2411dc6b180cfb41f382ab2ce757a7d20e049b0111021d998a020594421b47`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3009	331 bytes

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