PDF malware analysis — malicious · 45d4823a9f624d64

MALICIOUS

PDF

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

MD5: c7f55d386713b21d29fb2eebb13c919e SHA-1: 26bfdfdcce03202508a411bc070b9ca1304902bc SHA-256: 45d4823a9f624d6431517d2aea1c26a9010b0ab3bb464e3e31bb62e967a0e966

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is identified as a malicious PDF by multiple heuristics, including a high-confidence ML classifier and ClamAV detection (Pdf.Exploit.Dropped-94). The presence of embedded JavaScript actions and streams strongly suggests that the PDF is designed to exploit vulnerabilities. The large size of the embedded JavaScript object further supports the likelihood of a complex exploit or payload delivery mechanism. The document body content appears to be metadata and not user-facing text, indicating the malicious functionality is entirely driven by the embedded script.

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` `393c472d20667295adab021d9defb7ac00d8cff8b3168ec9e442d77967912675`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	45550 bytes

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