Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b79cc46a7c360fe…

MALICIOUS

PDF

11.1 KB
MD5: ce343c97405aa260949f2dc11566f5f7 SHA-1: 134dd6c1629fef11851679d7e878e33b02b2230c SHA-256: 1b79cc46a7c360fed64f0f242e5c38ba87cfd7f70b46f1407ed28080e701da7c
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious Link/Object

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36177', and an ML classifier indicating a high probability of maliciousness. Embedded JavaScript actions and streams were detected, strongly suggesting the PDF is designed to exploit a vulnerability and execute code. The primary function appears to be the delivery of a malicious payload via JavaScript.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36177 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36177
  • 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
a7e6203b0e8f812879ed8382ccbb3900ad81b5a92faf27692f51de6e8c96c13a		 pdf-javascript-stream PDF /JS object 7 at offset 0x1A6 569 bytes

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