Malicious PDF — malware analysis report

Static analysis result for SHA-256 50500dd19d94769a…

MALICIOUS

PDF

11.9 KB
MD5: 73d335f03e12acda05d008b98cf2c23d SHA-1: b63a8c7ebde025a781f16c94b526e1f087fcfe30 SHA-256: 50500dd19d94769a9638a492c54014c36f87c2456dfcfe957e6ad540e7bea0ee
78 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, as indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. ClamAV also flagged the file as malicious due to 'Heuristics.PDF.ObfuscatedNameObject'. The embedded JavaScript is likely responsible for executing a malicious payload, although its exact function cannot be determined due to obfuscation. No specific malware family could be identified.

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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