PDF malware analysis — malicious · b666c96911cb3035

MALICIOUS

PDF

47.4 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via subst)

MD5: b42ab5e11a8025fddfe2980479fffa20 SHA-1: c2c724b4d12a48f24bba9722c2dcae41d2ec771a SHA-256: b666c96911cb3035b724a1f89ff2da12eb945b66f609ba87cf06fcddfcc402a0

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as 'Pdf.Exploit.Dropped-94'. The presence of embedded JavaScript, indicated by heuristic firings, suggests the document is designed to execute code. This script likely attempts to download and execute a secondary payload, a common technique for initial access.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
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_obj0076_000.js` `b175501e41fa62249fceead367b15f9d2a5c398e4addccd1d0ac29fd9e87956f`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	45787 bytes

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