Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6956a73fa5ed57d…

MALICIOUS

PDF

5.2 KB
MD5: 4dfe0c1882fc0c5c65c2f8d32d1e7e51 SHA-1: add9175d331c2749ea1166e8e45a1a40621deb86 SHA-256: b6956a73fa5ed57d5d1e99a089f53af0abfe22e6a06ff9fdbbc3afe9d87d75bf
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide malicious content. The embedded JavaScript is the primary vector for exploitation, likely leading to further malicious activity.

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: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.

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