PDF malware analysis — malicious · eef28dfe904a5a4a

MALICIOUS

PDF

12.2 KB

MD5: 01f0a99efa22e3a9b3c12b334bb68117 SHA-1: eaa696247dbdaf147086e753872185c4669516c1 SHA-256: eef28dfe904a5a4a80eff96577993809303de7f04979d5794de13064f0274545

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, identified by heuristics as a stager for evaluating malicious code within the document's metadata. ClamAV detection as 'Pdf.Exploit.Dropped-94' strongly indicates the presence of an exploit designed to drop a secondary payload. The ML classifier's high confidence further supports the malicious nature of this document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
PDF metadata JavaScript eval stager high PDF_METADATA_EVAL_STAGER

PDF JavaScript reads document metadata fields such as title, subject, or producer, decodes character data with parseInt/String.fromCharCode style helpers, and evals the recovered stage. This is a high-signal exploit-kit staging pattern.
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` `f469a2210a9cc0339da38890da32adac2d7124adb9220a585d5c4d8c2fb7e79a`	pdf-javascript-stream	PDF /JS object 76 at offset 0x2ECD	331 bytes

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