PDF malware analysis — malicious · 94f8164d65763a11

MALICIOUS

PDF

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

MD5: 1efe425d4477ec77dee3d5c4d9fcb32d SHA-1: 8ae821626f2bfb780204d5b4795b848cdf573b86 SHA-256: 94f8164d65763a11ef3d5e9bb1f37c29eff7796b6e0d5142eb1f650896814747

108 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF was flagged by multiple heuristics, including a high-severity ML classifier and ClamAV detection as 'Pdf.Exploit.Dropped-94'. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, suggests an attempt to execute malicious code. The ML classifier's output of 0.999989 strongly supports the malicious verdict. The embedded JavaScript is likely responsible for exploiting a vulnerability or downloading a secondary payload.

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` `ab049c965f6ca57ef88a1257ae1ab370c13faaf8c79fffcb1b3215fc24bb268c`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99A	45876 bytes

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