PDF malware analysis — malicious · 1d4064e63617206f

MALICIOUS

PDF

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

MD5: 1cdaaf718567e84efc8649e65350c5ca SHA-1: d154c44aecf3b50b5ac176a9b1265fab8fb2d78e SHA-256: 1d4064e63617206f8fd3d8f60890d34b7ebfc3c01745d98758ccd2c5960785df

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-94' and a high ML score. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, suggests an attempt to exploit vulnerabilities within the PDF reader. The large embedded JavaScript object (46163 bytes) is likely responsible for downloading and executing a secondary payload, which is a common technique for malware delivery.

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` `7b58c900ea128cc2473976bb76a43305886070c9a2f040a92dfad80d7d1a49c7`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	46163 bytes

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