Malicious PDF — malware analysis report

Static analysis result for SHA-256 610da243d869d43a…

MALICIOUS

PDF

11.5 KB
MD5: 779a1b858c7b237095525b04694adecd SHA-1: e7584086cf301389c22fafe5590e1e40be682e37 SHA-256: 610da243d869d43a5552660ebc8f54c487320413506125b2684144382447a679
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, identified by heuristics and ClamAV as malicious (Pdf.Dropper.Agent-7265579-0). The JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial execution and further system compromise. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7265579-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7265579-0
  • 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_obj0045_000.js
6b8562c89b1b45f15f36ae10b2d26af5478c50da31a93569360b0d2c7c042626		 pdf-javascript-stream PDF /JS object 45 at offset 0x193 28010 bytes

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