PDF malware analysis — malicious · 801222b82876d811

MALICIOUS

PDF

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

MD5: b47b9fd21fb6b12feb015dfdeb91cca8 SHA-1: 6955932c390620fe193a9dc91f8416f29ddc82b5 SHA-256: 801222b82876d8117b91fdb54afa07d2ec92c6e5c2df0ae524476fcbf586bf60

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'. Embedded JavaScript actions and streams indicate the presence of exploit code. The ML classifier's high confidence score and the ClamAV detection strongly suggest this PDF is designed to exploit a vulnerability and drop 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` `b244935f76d20c3d8eab5f99371bfd9bb89b28dcdd0e1d36196b6ca9953cf661`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99B	50564 bytes

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