Malicious PDF — malware analysis report

Static analysis result for SHA-256 37849191d4c6415b…

MALICIOUS

PDF

12.3 KB
MD5: 4460b6d1132fa6b51f0e19c3755f53c0 SHA-1: e4e90e128f33375fc6a65414bcf1241e8b21100b SHA-256: 37849191d4c6415b9239788ad8d711918b08ceca993851275d88e2ca1e996cd6
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded and obfuscated JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged the file as malicious due to obfuscated objects. The presence of JavaScript suggests an attempt to execute malicious code, likely to download and run a secondary payload. The specific attack pattern is inferred from the nature of PDF-based JavaScript threats.

Heuristics 4

  • 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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.

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