Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ba8b1ea9781ef9…

MALICIOUS

PDF

12.0 KB
MD5: e8b32e964d3aa57759925e47b6ade84c SHA-1: b6b6bb78ef92b02aa69feb0850cb944c25d70be7 SHA-256: 27ba8b1ea9781ef94953b0a18c7b8165f6aa918f9d94c2e0aaaa16a4d0bfc52e
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV also flagged it with Heuristics.PDF.ObfuscatedNameObject, confirming its malicious nature. The JavaScript is likely responsible for executing the malicious payload, although its specific actions could not be determined due to obfuscation.

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 exited 1. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.

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