PDF malware analysis — malicious · 4cf0bd2553926cb8

MALICIOUS

PDF

16.0 KB

MD5: a9f8c5393bb546c7f321e7681ac386d2 SHA-1: 113ece45d23794a7541e32264fd1dd550c1dba31 SHA-256: 4cf0bd2553926cb808db442a2b7d6ef6f0d3858dcc806db1a3e4cdd3425a65f8

106 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as 'Pdf.Exploit.Agent-36324'. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, suggests an attempt to execute malicious code. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
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` `fa74dcea9c4d25d9cffe35e3413aa736f87862b01d5f3056a8440142c6520391`	pdf-javascript-stream	PDF /JS object 76 at offset 0x2D4	15488 bytes

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