PDF malware analysis — malicious · fa475b054423eeac

MALICIOUS

PDF

3.2 KB

MD5: eb18416620b0cef93c688ce1b35308b9 SHA-1: 73dd3afcd7cedf192e510d3127bfcc68ecc941f5 SHA-256: fa475b054423eeacef8fb4f9a62444a5d93f74d451a0d0d4d7c0a60bf56f41f6

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically detecting a known exploit (Pdf.Exploit.Agent-36121). Embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics, is present and likely responsible for the exploit execution. The document body is unreadable, but the presence of JavaScript and the exploit detection strongly suggest a malicious intent, likely to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
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_obj0007_000.js` `f62d61c52b2b06a864087fa0755f90d6f25fb051cd35d683e57bd4fddf4d24d4`	pdf-javascript-stream	PDF /JS object 7 at offset 0x9C8	458 bytes

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