Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a6e6b57439152a8…

MALICIOUS

PDF

32.1 KB
MD5: 2f06a04b12f423209749b03d66ed5155 SHA-1: 92f5faf5acee762af6437c8012cacc18bb702a03 SHA-256: 9a6e6b57439152a8bb4d88891063e5b62fde3ef7cdb059963baaa75240b0786a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The file is a PDF containing XFA form elements and embedded JavaScript, as indicated by the PDF_XFA heuristic and the ML_NYX_PDF_MALICIOUS classifier. ClamAV detected it as Js.Exploit.HTML-30, suggesting an exploit targeting JavaScript. The embedded JavaScript, after deobfuscation, appears to construct a string and then evaluate it, likely to download and execute a second-stage payload. The embedded URL is likely related to the XFA template but may also be used in 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/

Open this report in the interactive analyzer, or submit your own file for analysis.