Malicious PDF — malware analysis report

Static analysis result for SHA-256 672fb997acd744b4…

MALICIOUS

PDF

5.1 KB
MD5: 9fb75e67d6567442506936cf2ff6cd9c SHA-1: 19eb7076dcd6a35568c4ee142e6dc9191d1e4360 SHA-256: 672fb997acd744b4b5487ae1b8e34b098f079f2b075841cbcfcb46130a34b278
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV with high confidence as malicious due to obfuscated JavaScript content. This JavaScript is likely designed to download and execute a second-stage payload, a common technique for initial compromise via spearphishing attachments.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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.

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