PDF malware analysis — malicious · 652c7ce47bc1a019

MALICIOUS

PDF

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

MD5: c36ebc65b8357fb690a186c19db054ad SHA-1: e4118592e7d6170f5dc1593205c805f35300ccf7 SHA-256: 652c7ce47bc1a0191aee4231462099338d7618913491f33d1feddb1a50b71e6b

106 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF sample contains embedded JavaScript that is obfuscated but appears to be designed to download and execute a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically related to exploitation and dropped malware. The JavaScript reconstructs a string that is likely a URL or command for payload retrieval, though the exact value is not fully discernible due to obfuscation.

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` `53bd799338861dd61a0cad74b34428d748494eee70e054523fb40e5b0b298147`	pdf-javascript-stream	PDF /JS object 76 at offset 0xB8E6	526 bytes

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