PDF malware analysis — malicious · 2419e6867066bb1c

MALICIOUS

PDF

13.0 KB

MD5: c0cfd16b310b791e5f7c3a3153317e6d SHA-1: 73769e7ace3590723bb6ced7fb8e31dd40aa63fd SHA-256: 2419e6867066bb1c5f2836025ffd60ea161b80f2aef8646c142d0ea613fe454b

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, identified by multiple heuristics as a stager for executing exploits. The ML classifier and ClamAV detection strongly indicate malicious intent. The JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Dropped' indicator in the ClamAV detection name.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Dropped-94 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-94
PDF metadata JavaScript eval stager high PDF_METADATA_EVAL_STAGER

PDF JavaScript reads document metadata fields such as title, subject, or producer, decodes character data with parseInt/String.fromCharCode style helpers, and evals the recovered stage. This is a high-signal exploit-kit staging pattern.
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` `65d00139a506b1fb79c76c5207b40053812686ab65270d0f54a74a39d5addf93`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3201	331 bytes

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