Malicious PDF — malware analysis report

Static analysis result for SHA-256 d62d1d4dd8425d16…

MALICIOUS

PDF

31.7 KB
MD5: cc8629b1f9e143288c6d14fbac86bf7e SHA-1: dd63fe5eabcda1820940318c1bacb52a3e15a801 SHA-256: d62d1d4dd8425d16ab82c37a57dec5818a7e46caa576359cc03d21063a5471d5
98 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically detecting Js.Exploit.HTML-30. The presence of an XFA form is a known technique for embedding malicious content. The embedded URL, while seemingly benign, is part of the exploit structure. The script content indicates it is designed to download and execute a second-stage payload.

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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