PDF malware analysis — malicious · 957035ae867d7b75

MALICIOUS

PDF

13.6 KB Created: 2010-04-08 22:29:52 Authoring application: Datoanwtobowid

MD5: 03c44ff039a87ef8afc73665f66115b5 SHA-1: 9837f4c7ad632806583254e4401eaefd12196a7d SHA-256: 957035ae867d7b75acd0612ee97bbe138ef3bb2410b3c8c35f7c6a3341c0a82e

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 identified as a dropper. Heuristics indicate the presence of JavaScript actions and embedded JS streams, suggesting the script is responsible for downloading and executing a second-stage payload. The ML_NYX_PDF_MALICIOUS score of 0.999981 strongly supports the malicious nature of the file.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Dropper.Agent-7284211-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7284211-0
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_obj0022_000.js` `245c0b9862d04840bf090ff4e96efec37274cb40841e8b6a70a16bccda7c1072`	pdf-javascript-stream	PDF /JS object 22 at offset 0x2B9A	40772 bytes

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