Malicious PDF — malware analysis report

Static analysis result for SHA-256 0616e5bd215bda7a…

MALICIOUS

PDF

16.0 KB
MD5: 188417e1e6912812ff11057a64eb75a6 SHA-1: 100624f5da358ef19fa32a1405b211d703cc4bab SHA-256: 0616e5bd215bda7a26397ce8b803c450c3dfe956d8ae6fb220f4ce0f09f344e5
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36324', and an ML classifier indicating high maliciousness. The embedded JavaScript, though obfuscated, is designed to execute arbitrary code, likely downloading and running a secondary payload. This points to a common attack pattern for malicious PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
  • 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.

FilenameKindSourceSize
javascript_obj0076_000.js
af7eb2864551fb8e5cdde33d8c2e37954a6e8002fc3555c261a60c12124a25ae		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 15469 bytes

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