MALICIOUS
114
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.002 Spearphishing Attachment
The PDF file was flagged as malicious by a machine learning classifier and ClamAV due to obfuscated JavaScript content. The embedded JavaScript stream, named 'javascript_obj0012_000.js', is highly likely to be responsible for downloading and executing a secondary payload. While the exact execution chain is obfuscated, the presence of JavaScript within a PDF strongly suggests an attempt to exploit vulnerabilities or trick the user into running malicious code.
Machine Learning
- Nyx PDF Classifier malicious score 0.9608
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.js82b229b62fc05b3d14ee55c0c22e45a3c4234fbbcfdbb66c9585c6a78ca7c0e3 |
pdf-javascript-stream | PDF /JS object 12 at offset 0xA1D3 | 4171 bytes |
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