Malicious PDF — malware analysis report

Static analysis result for SHA-256 831045b3330e0645…

MALICIOUS

PDF

12.0 KB
MD5: b1a1e4cbd490db69c7734f6b7ff8f212 SHA-1: cfbf6c1684dcf874e6807fed523c461e2de4df04 SHA-256: 831045b3330e0645005e8302d3329be15c2b1523c9aff0f3cd72c54cbd2b432e
106 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a high-severity ML classifier and critical ClamAV detection identifying it as Win.Trojan.Agent-36281. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening or interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Win.Trojan.Agent-36281 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-36281
  • 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
d7bb46c67f1ff49f1eb3ace7aa7a7212622c08091e634b84c190bc6accb0aec7		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11173 bytes

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