PDF malware analysis — malicious · ccc119491e066713

MALICIOUS

PDF

7.5 KB Authoring application: Jgaxivakafowizasi (via 50cd6Uohosicilab)

MD5: d70c8f05d3f71086580ea3d01407748f SHA-1: 0458da6f10a734e6fece686d415b33a2a973e6ff SHA-256: ccc119491e06671309edab45dfb4b98c258513bb24aac91dc1f48992a902de47

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, specifically for obfuscated objects and embedded JavaScript. The embedded JavaScript stream is the primary indicator of malicious intent, likely used to download and execute a second-stage payload. No specific family could be identified due to the obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 0.9954

Heuristics 3

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0011_000.js` `c35f939b8b08b4458e4f2307d4bfd0afc23546c955e11c1da88e87302e40c9b0`	pdf-javascript-stream	PDF /JS object 11 at offset 0x1358	3029 bytes

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