PDF malware analysis — malicious · 12f040891905ac82

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via 69d42Tibedegabala)

MD5: b15bd790bbdfdfe41e9ae94649af4c1f SHA-1: 2afd83f73e36c6edd3466f697fe2741a41eaabd8 SHA-256: 12f040891905ac82351099632f64e8f6a82e5f6db48a3135c872c9fbed22e526

106 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains embedded JavaScript, flagged by multiple heuristics, and is detected by ClamAV as Pdf.Exploit.Agent-36142. The JavaScript attempts to decode and execute a payload, likely downloading a second-stage exploit or malware. The ML classifier also strongly indicates maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9987

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36142 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36142
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_obj0010_000.js` `d4dce4f95f7146e3b127d68edf45ceb045483a205d9e9a2a53d6e6b80d83b663`	pdf-javascript-stream	PDF /JS object 10 at offset 0x1230	1728 bytes

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