Malicious PDF — malware analysis report

Static analysis result for SHA-256 c575b6ed7cffb02c…

MALICIOUS

PDF

3.2 KB
MD5: e627d9a99ac3df4e4ee816edf6014bf2 SHA-1: b8e326027a00ace570d11f79fa3376170af40b77 SHA-256: c575b6ed7cffb02c289e8df1ebc3e08814ab686ca8fba9bf8ff1bf6be6259e6c
106 Risk Score

Malware Insights

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, which identified it as Pdf.Exploit.Agent-36121. Static analysis revealed embedded JavaScript, indicating an attempt to exploit a vulnerability within the PDF reader. The JavaScript is likely responsible for executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
  • 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_obj0007_000.js
4007776bafd0a4636675faddbba769deb2c8a4162b5db7ad8d979d4d1709d5cc		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C4 484 bytes

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