Malicious PDF — malware analysis report

Static analysis result for SHA-256 39c80f075d88249e…

MALICIOUS

PDF

32.2 KB
MD5: 4b1bae8138865d00d99a8ba91226ce21 SHA-1: 8f82c7a6273ead152fb842e638dbbd3b9e28cedf SHA-256: 39c80f075d88249ecb73eb370b4e866685bb29310e51ed3a5d712240b7d06c26
68 Risk Score

Malware Insights

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

The sample is a PDF document identified as malicious by ClamAV with the signature Js.Exploit.HTML-30. It contains embedded JavaScript within its XFA form, which is a known technique for exploiting PDF vulnerabilities. The JavaScript appears to be obfuscated but is designed to execute an exploit, likely downloading and running a second-stage payload. The embedded URL is likely related to the exploit or payload delivery.

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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