Malicious PDF — malware analysis report

Static analysis result for SHA-256 902374eeca7aab2c…

MALICIOUS

PDF

45.2 KB
MD5: 6d89134c55db068a57bf0238e88b74b4 SHA-1: 5294f973e0aeb38d95265611de7393771b11c857 SHA-256: 902374eeca7aab2caed0715dcf982296b734736cbc8d2e10f4a6cbeb6d7a2367
114 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a dropper. Heuristics indicate the presence of embedded JavaScript and XFA forms, suggesting an attempt to exploit PDF vulnerabilities or deliver malicious content. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as is common with dropper malware. The document body is unreadable, providing no further context.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9615

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7282399-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7282399-0
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/2.6/
    • http://www.xfa.org/schema/xfa-template/2.6/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0012_000.js
6c827e3b4d8593e0a6b4cf8c364b675e1479d2c5bc4bfa921ef38a72a845fa1f
pdf-javascript-stream PDF /JS object 12 at offset 0xA1FB 3598 bytes