PDF malware analysis — malicious · 65e237d21b752e37

MALICIOUS

PDF

3.3 KB

MD5: eaec271696cd7d0bbb0db39c2a561d7c SHA-1: 35a7db4687931591ec5024fcf38db04af5e2c8b8 SHA-256: 65e237d21b752e375f66a34ccd47da018fc74317b53c6b733d2b6d31fa58d0a3

106 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript that is obfuscated but appears to extract content from the document's title field. This extracted content is then passed to a JavaScript function, likely to construct and execute a malicious command. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with an exploit targeting PDF vulnerabilities to download and run a secondary payload.

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` `c676905e9aeb6cfbff41b846681ecd4a5b956214db518c3510dfeeaa85064205`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA81	311 bytes

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