PDF malware analysis — malicious · 45ec9f7a3d75b43c

MALICIOUS

PDF

12.6 KB

MD5: 2263e79f623cbb8b58e6365b272529ad SHA-1: 0263e96e4043eca8c800a43342bd8c8571e6119b SHA-256: 45ec9f7a3d75b43c52d6f337323ea0399d4d4db88a40c635c900d04f8c508f48

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript within its metadata, identified as a stager. This JavaScript is likely responsible for downloading and executing a secondary payload, as indicated by the 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics. The specific ClamAV detection name 'Pdf.Exploit.Dropped-94' further supports this. The document body content is minimal and does not provide additional context for the attack pattern.

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` `ff37734172a15ac604113648adb5b8641489dffd13a4f3ca195e9544c98f230f`	pdf-javascript-stream	PDF /JS object 76 at offset 0x3026	331 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.