MALICIOUS
114
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ML classifier also flagged this PDF as malicious with a high score. While the document body is heavily obfuscated and unreadable, the presence of JavaScript strongly suggests an attempt to execute malicious code. The embedded JavaScript file 'javascript_obj0012_000.js' is the primary IOC. The exact intent of the script cannot be determined due to obfuscation, but it is likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9679
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.jsae5ab522d563c7628b3faa67944893f594162f006ce8cec6051322164a2b34a9 |
pdf-javascript-stream | PDF /JS object 12 at offset 0xA1F1 | 4349 bytes |
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