Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f3e4896c8608c87…

MALICIOUS

PDF

10.5 KB
MD5: f92900987e74cd90c88327f8224da829 SHA-1: a7a63bb7659a45afc58316b6422b378f74654fc5 SHA-256: 2f3e4896c8608c8769961a892a32efd662875cf09c10b58989d2b84a4adb25fe
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as 'Pdf.Dropper.Agent-7245154-0'. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics, suggests the script is responsible for the malicious behavior, likely downloading and executing a second-stage payload. The document body content was unreadable, providing no further context on the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7245154-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7245154-0
  • 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_obj0035_000.js
fee64d76729858f5a8918d2401336909c40d13591427199821851e103d9e8f5a		 pdf-javascript-stream PDF /JS object 35 at offset 0x17E 22831 bytes

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