PDF malware analysis — malicious · b6bf961940eb2e30

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via 3eb43Tibedegabala)

MD5: ea2011f5cf65c10e190131e1455ced9f SHA-1: 67e80cd88d7763d16554e55bc316989a912a623a SHA-256: b6bf961940eb2e30bdf44045cab71d63a946a35177ef396525d29060314fae48

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-36142 and a machine learning classifier indicated a high probability of maliciousness. Heuristics indicate the presence of embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities to download and execute further malicious content. No specific family could be identified, but the attack pattern is consistent with a PDF-based exploit delivery mechanism.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

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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