Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f9e5f23d2bc2cd9…

MALICIOUS

PDF

12.3 KB
MD5: f8cc79fa46118289d450351fefeba151 SHA-1: 9df904b7f48df8ee1beb5334f77e1c3a88249b9b SHA-256: 7f9e5f23d2bc2cd97cc5118dd5b3b3df21b7471fe9f62e6767604d9cd202c34c
106 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36723'. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be exploiting a PDF vulnerability to run arbitrary JavaScript.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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
c081f4e57179fce9e1e872941ad794262e3b508e2e62c111ff764b59e313e4bc		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11538 bytes

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