PDF malware analysis — malicious · f5cf172ef7eeb239

MALICIOUS

PDF

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

MD5: a5db13c7aadbbb1618489f8bf3902edf SHA-1: 7ff54e9c2866cbdcc06762d422a28ada5698c0f8 SHA-256: f5cf172ef7eeb239a68dabbdb4de1c57a51fdb0bf4efea4bb5fc6da3ababe434

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as Pdf.Exploit.Dropped-94. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The ML classifier's high confidence score and the ClamAV detection strongly suggest this PDF is a dropper for further malicious payloads.

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` `8538059730cff52ffeb0fd975a1b24b1247ec7402139a1a123b68f7e054ec1bb`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99C	45505 bytes

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