PDF malware analysis — malicious · 8c9c73cfb0e5c50e

MALICIOUS

PDF

47.2 KB Created: 2006-02-16 15:03:51 -08:00 Authoring application: Acrobat PDFMaker 7.0.5 for PowerPoint (via substr)

MD5: a6615c95688866823bfab39ceaa407bd SHA-1: 1c59c8242e0b0f96fd82999508d5864b25702bc0 SHA-256: 8c9c73cfb0e5c50e3e1e39e6644d40038f49f6960319299b09d29e71979502de

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV and a machine learning classifier. It contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities to download and execute further malicious content. The ML classifier's high confidence score and the ClamAV detection strongly suggest this is a malicious dropper.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
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_obj0076_000.js` `d21ffeb7b5454146f7647d99ecb54138fb86c2d0bcfed625018755bc65311e06`	pdf-javascript-stream	PDF /JS object 76 at offset 0x999	45562 bytes

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