PDF malware analysis — malicious · 5caf0ef13347d9bf

MALICIOUS

PDF

3.3 KB

MD5: 524d273082412860ca543d79ca5afd18 SHA-1: ab76b5188183f74c46f7310561bde415b8582c6d SHA-256: 5caf0ef13347d9bf5f0c0a458b16faba32f33f47e86f1da451635916962075bd

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is a PDF containing embedded JavaScript, flagged by heuristics and a machine learning classifier as malicious. The JavaScript code appears to be obfuscated but is designed to execute a command based on the PDF's title property. This strongly suggests the PDF is intended to exploit a vulnerability and download a secondary payload, consistent with common malware delivery techniques.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
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_obj0007_000.js` `73b7dc0c739efabfe9a9cd10ee7733944625781e98cc30e2218996df800712b3`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA81	340 bytes

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