Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c6b1f7dcaac5c31…

MALICIOUS

PDF

6.0 KB
MD5: 87b2b252074346aecdd20b427a13ce09 SHA-1: 4d16c752cd2187cb19c5f9041edc0bab6935a31b SHA-256: 5c6b1f7dcaac5c3131478da782fda99ba19a6d4f0379cf9900f3e3128550091b
106 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV due to obfuscated JavaScript content. The embedded 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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