Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f88608be6f38439…

MALICIOUS

PDF

34.5 KB
MD5: a16c4f47b93330accea16453080e5613 SHA-1: 64a9629a4b29655fcf95da7f34841857504ffdd6 SHA-256: 3f88608be6f38439449b04669b2131333d59b2f2dbf6aef4722cf892ee5c5eec
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject, suggesting obfuscation techniques are in use. The embedded JavaScript is likely used to download and execute a secondary payload or exploit a vulnerability within the PDF reader.

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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