PDF malware analysis — malicious · 3638ef7c69338f29

MALICIOUS

PDF

4.6 KB Authoring application: Ziixojobouope

MD5: eeea773b387f02cd389b2afa7f6a4293 SHA-1: df8a16615eef14d6d58d81c4d4da3c0c0386371c SHA-256: 3638ef7c69338f29b9eee63f3e55812f4a58b24a73f45aa8262663d8ca5412d7

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by multiple heuristics, including a high-severity ML classifier and ClamAV detection as 'Pdf.Dropper.Agent-7248658-0'. The presence of embedded JavaScript, indicated by the 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics, strongly suggests that the document is designed to execute arbitrary code. This JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for dropper malware. The document body contains heavily obfuscated and unreadable text, providing no direct clues about the lure, but the technical indicators are clear.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Dropper.Agent-7248658-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7248658-0
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_obj0011_000.js` `01072c4bc37b874dad0eb6f98a7bff8a2daf59a509f4d548c87ac32051ac17a8`	pdf-javascript-stream	PDF /JS object 11 at offset 0xCB9	1439 bytes

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