PDF malware analysis — malicious · 0e05498766dcc781

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via cc55eTibedegabala)

MD5: 9280cda40e5bf8b76c49b92c5985a140 SHA-1: 59020b909dc6f9ab503aed62479fe1f36abb44ac SHA-256: 0e05498766dcc7810b9f010976ed2932751634e98a082e84fc77cd2849cc1474

106 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript, flagged by multiple heuristics and a high ML score. The JavaScript code appears to be an obfuscated downloader that attempts to construct and evaluate a string containing further malicious code. The ClamAV detection 'Pdf.Exploit.Agent-36142' strongly indicates malicious intent, likely involving exploitation of a client-side vulnerability to achieve code execution.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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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