PDF malware analysis — malicious · 8a4da428bffdbca2

MALICIOUS

PDF

9.5 KB

MD5: b75766d04a70fb07f8aa9be0a783cfe5 SHA-1: c0c079a085f9b2bc98ea1281cfef0762c2312e3e SHA-256: 8a4da428bffdbca2bcd45ffafbc6b219e4a2bcc717586262a76b86ff3faf1b99

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/Shell Script Execution: JavaScript

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a dropper. Heuristics indicate the presence of embedded JavaScript, which is a common technique for executing malicious code within PDF documents. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the dropper classification.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Dropper.Agent-7280299-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7280299-0
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_obj0069_000.js` `87d57dd05a979fc3e27ef976b8fd421b4b9b6f964681123ac5df7ef891c63fa3`	pdf-javascript-stream	PDF /JS object 69 at offset 0x1BE	25749 bytes

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