PDF malware analysis — malicious · 3407937d3fa0d36e

MALICIOUS

PDF

22.3 KB Created: 2009-04-24 09:54:29 +02:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 7.0.5 (Windows))

MD5: da002b81998359af0aba1780ebab938d SHA-1: 3d72a7e2002aafe77eb05fccaaee254d14ddc0a0 SHA-256: 3407937d3fa0d36e406796a7fdc34b4d0124b3a7b81ed61d2593524a5eae8772

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, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ML classifier and ClamAV detection further confirm its malicious nature. The JavaScript is obfuscated and likely attempts to exploit a vulnerability to execute arbitrary code, a common technique for delivering secondary payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9976

Heuristics 3

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.

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