PDF malware analysis — malicious · 80faba63ae714c44

MALICIOUS

PDF

58.6 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: lice (via ubst)

MD5: c70b7f67685bb6b77f4c0adf14af2257 SHA-1: c2055fd5fd6c974a549a244b51ea8dc38f306ae7 SHA-256: 80faba63ae714c440c7f158427b865dc98d5e208d6d8492a15e7f8e72ffed6a1

106 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file was flagged as malicious by ClamAV and a machine learning classifier. The embedded JavaScript, though heavily obfuscated, is designed to download and execute a secondary payload. The presence of JavaScript actions and streams within the PDF strongly indicates an exploitation attempt, likely delivered via spearphishing.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
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_obj0076_000.js` `c513de91bba07f3406971746da9c6515ec24232372119f1fc33ecb2f148aebf4`	pdf-javascript-stream	PDF /JS object 76 at offset 0x94B	50105 bytes

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