MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 JavaScript/JScript
T1204.002 Malicious File
The PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection for obfuscated objects and an ML classifier. The presence of embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, suggests an attempt to execute malicious code. While the document body is unreadable, the JavaScript is the primary mechanism for exploitation, likely downloading and executing a second-stage payload. The specific URLs extracted are related to XFA forms, which are often used in PDF exploits.
Machine Learning
- Nyx PDF Classifier malicious score 0.9921
Heuristics 5
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ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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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_obj0012_000.js062b56bc1fc8d4ebbe0c3980a440fae66ee18d6654daf48a9a71439580c6f2e8 |
pdf-javascript-stream | PDF /JS object 12 at offset 0xA1F0 | 4004 bytes |
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