PDF malware analysis — malicious · 9487cf8ac561ee2b

MALICIOUS

PDF

4.4 KB

MD5: b26c9467afd9b9f2e8012f1636acbdb6 SHA-1: 724b8e3b314270bcbb4fa1d134382f90946d8643 SHA-256: 9487cf8ac561ee2bb7bc080ed81b1d23ee44afb4db6af69ad0cc90cc5e97e309

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The file is a PDF containing embedded JavaScript, as indicated by multiple heuristic firings and the presence of a javascript_obj0020_000.js artifact. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically targeting PDF vulnerabilities. The embedded JavaScript is the primary mechanism for exploitation, likely serving as a downloader for further malicious activity. The specific ClamAV detection name 'Pdf.Exploit.Agent-36898' is included as a key indicator.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36898 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36898
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_obj0020_000.js` `f72f9ea502d33dad53415a26e32cbe290db501debf82d67d31eb6459d713de5d`	pdf-javascript-stream	PDF /JS object 20 at offset 0xDF7	252 bytes

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