PDF malware analysis — malicious · 2c9358a87e78903a

MALICIOUS

PDF

44.9 KB Authoring application: substr

MD5: 5d32a0edbcf3ff7c53fff0437d254106 SHA-1: 4500367c8fcc72258b84138f7f9ca0dba177bf4d SHA-256: 2c9358a87e78903ac85740e6d2d91c945ce35ee6ab579e6183c451d2aa646e00

76 Risk Score

Malware Insights

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection further confirms its malicious nature. The embedded JavaScript is likely intended to execute malicious code, although the specific payload or delivery mechanism cannot be determined from the provided evidence. The document body text 'substr split test' does not provide further context on the lure.

Heuristics 3

ClamAV: Pdf.Malware.Agent-7659010-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Malware.Agent-7659010-0
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_obj0001_000.js` `89512ba6fbc208ef8ec52b8f65d1486659974b7a8e31a70893013741f4d4cfce`	pdf-javascript-stream	PDF /JS object 1 at offset 0xB106	423 bytes

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