PDF malware analysis — malicious · 5f94ce3d132f6a43

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja

MD5: 1dadc262406663364d73d6540131d9b2 SHA-1: aa9169001acc6583ab1108d33b9a95b8c9ce80fc SHA-256: 5f94ce3d132f6a43f5761a6750b057f4b34fc716b2da825344da566861d56e04

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36066', and ML classifiers indicating maliciousness. Embedded JavaScript was detected, which is commonly used to exploit vulnerabilities and download further malicious content. The presence of JavaScript and exploit-related heuristics strongly suggests an attack pattern involving client-side exploitation, likely delivered as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36066 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36066
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_obj0022_000.js` `22e7b9b95199cc294a88baec03e968aa698abb89fdbf202e98b946c7b2639771`	pdf-javascript-stream	PDF /JS object 22 at offset 0x30AF	971255 bytes

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