PDF malware analysis — malicious · cb6776629a83e52f

MALICIOUS

PDF

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

MD5: 0bcdc360793fbf1687a98f520a8e6508 SHA-1: 645e58ac6346ec073778281e8b1706d139d025fb SHA-256: cb6776629a83e52ff23bf74ae6f9a613b8e28404e0000d63852dc39f0a15664e

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The file is identified as a malicious PDF by ClamAV (Pdf.Exploit.Dropped-94) and a machine learning classifier. It contains embedded JavaScript, indicated by heuristic firings for PDF_JAVASCRIPT and PDF_JS. The ML classifier's high confidence score further supports its malicious nature. The embedded JavaScript is likely responsible for exploiting vulnerabilities and dropping a secondary payload, although its specific actions are not detailed in the provided evidence.

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` `62a18de2f9f5abc209e1e6d58a74ce2087b00ebe5f3016d86daba6df76eb4eac`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	48849 bytes

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