Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5d7fa6fe64c2b1…

MALICIOUS

PDF

31.8 KB
MD5: decc40aa102f2a8bfc8634d71e5319cf SHA-1: 4c4b3494bfd9996bf0be892d32986584e1283ffd SHA-256: fc5d7fa6fe64c2b1f47db75b86df495bbced8547f149797aa78a144bca9bdcbe
98 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an XFA form and embedded JavaScript, as indicated by the PDF_XFA heuristic and ClamAV detection (Js.Exploit.HTML-30). The ML classifier also flagged it as malicious with high confidence. The embedded JavaScript likely attempts to exploit vulnerabilities or download a second-stage payload. The presence of an embedded URL further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.xfa.org/schema/xfa-template/2.5/

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