MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier also flagged this PDF as malicious with high confidence. The embedded JavaScript, although partially obfuscated, likely executes malicious code. The presence of XFA form elements and ASCIIHexDecode filters further suggests an attempt to exploit PDF vulnerabilities. The primary attack pattern involves leveraging the PDF's scripting capabilities to deliver a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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Embedded URL info EMBEDDED_URLOne 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.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0043_000.jsfd5f245700c5c2da5cce9ccd537c4c61fe087a1c6e1ea584b4d8cd730e3511a4 |
pdf-javascript-stream | PDF /JS object 43 at offset 0x68B2 | 45 bytes |
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