PDF malware analysis — malicious · d3c731a8d5c64d99

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: 0a6004f090afe62c762b34a4b1110b7b SHA-1: afdefbbd4016c1f3b75758d2606edd1265236f8e SHA-256: d3c731a8d5c64d990953b6af6b505b5d7d3fb4c7db1cb08eb65cf51223d6847d

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF document flagged as malicious by ClamAV with the signature Pdf.Exploit.Dropped-94. Static analysis detected embedded JavaScript, indicating an attempt to exploit PDF vulnerabilities. The ML classifier also strongly suggests maliciousness. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, which is a common technique for malware delivery.

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` `d5a66d1f74007f625075418f1ad2c738d16ad5ec8ad117afbba0b8d46b625bd9`	pdf-javascript-stream	PDF /JS object 76 at offset 0x99C	45479 bytes

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