PDF malware analysis — malicious · e77315d320a455b7

MALICIOUS

PDF

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

MD5: 22f53d46270a1a81d521ad862bf68061 SHA-1: 954b8922367563759cdd657444ff4a720e315e88 SHA-256: e77315d320a455b7926f3d70ab7b981a7c6a45b7013b4ee3d1748dff5343d0ad

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

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 the document is designed to execute malicious code. The ML classifier's output of 0.999990 strongly supports a malicious classification. The embedded JavaScript is likely responsible for downloading and executing a second-stage 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` `3e67432fefd1338df139cb97ead2781156df4e0dd26ecdade472c303a3487c4f`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	48861 bytes

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