PDF malware analysis — malicious · 547db0dd3ad893ff

MALICIOUS

PDF

7.5 KB Authoring application: Jgaxivakafowizasi (via 8437fUohosicilab)

MD5: cb467cd421efd0a7c803cd5a11309232 SHA-1: dee330a59a0298305fad4dc73f2feb880749a291 SHA-256: 547db0dd3ad893ff0f1b4fb0b6c3e8db24b2b7403cd3b57bc51097783fcd52bb

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection further confirm its malicious nature. The embedded JavaScript is likely responsible for executing malicious code, potentially downloading further payloads or exploiting vulnerabilities within the PDF reader. The obfuscated nature of the document body and the specific ClamAV detection (Heuristics.PDF.ObfuscatedNameObject) suggest an attempt to evade detection.

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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