PDF malware analysis — malicious · 3da74daa8e2cdbc4

MALICIOUS

PDF

7.2 KB Created: 2009-07-13 19:22:54 Authoring application: wuOn (via AXIj)

MD5: 8de1501dd46e69baf521c6b02c026239 SHA-1: d2255274fb55d65f8bca5d2c0928c43f9b7fb0dd SHA-256: 3da74daa8e2cdbc4445b7fc9cb870650cd54fe940e058990f848dc60189d0c1d

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Dropper.Agent-7252366-0'. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, suggests the script is responsible for the malicious behavior. While the script content itself was not provided, its existence and the high ML score strongly indicate it's designed to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Dropper.Agent-7252366-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7252366-0
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_obj0005_000.js` `255ae9b8dd9d541ea6f3d7eed38b1e6487f2e0d219fea93c15309ae6a72287f3`	pdf-javascript-stream	PDF /JS object 5 at offset 0x136	209 bytes

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