PDF malware analysis — malicious · 5f4b6db0eb72d977

MALICIOUS

PDF

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

MD5: dffbf5818426579b441a2725321bd87c SHA-1: f5fc392b3cb4c2e19d434757da4a9a5b6c52ebdb SHA-256: 5f4b6db0eb72d9774ed01b12f7146dc7752ba27631dd894cf77a4da87f79d42c

106 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high ML heuristic indicate malicious intent. The presence of embedded JavaScript, flagged by multiple heuristics, strongly suggests an exploit is being used to execute code. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for malware delivery.

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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