Malicious PDF — malware analysis report

Static analysis result for SHA-256 f34f8e465ccf79c4…

MALICIOUS

PDF

3.2 KB
MD5: ec28478519e90cb3df01d3a440449163 SHA-1: f6bc5584662d50634ac15a6268d59a8bdb1be87b SHA-256: f34f8e465ccf79c415340bd2216ec9ee83e1d2d013e068a728c11bff0b03b96a
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, which is a common technique for exploiting vulnerabilities in PDF readers. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript is likely responsible for executing a malicious payload, as suggested by the 'Pdf.Exploit.Agent-36121' ClamAV detection.

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
8f9046211f9b035d28637999155977be4a5b99ff534663c684fc3f96b4d58f22		 pdf-javascript-stream PDF /JS object 7 at offset 0x9C6 451 bytes

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