Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5505624eb3cc79f…

MALICIOUS

PDF

31.9 KB
MD5: f3a4da07d760e73a47a4a3ae2c216407 SHA-1: 1891f94bce64484b03bd626f9c38365e545a284e SHA-256: d5505624eb3cc79fd504a00f63e42122c77ec60f9c97b13cc82f5dff53ae1d2b
100 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection for Js.Exploit.HTML-30 and an ML classifier indicating high maliciousness. The presence of XFA forms and embedded JavaScript, as indicated by the DOC BODY and heuristics, suggests an attempt to exploit vulnerabilities within the PDF reader. The embedded URL is likely part of the exploit chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • 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.
  • 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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