MALICIOUS
114
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 JavaScript/JScript
T1204.002 Malicious File
The PDF file was flagged as malicious by a machine learning classifier and ClamAV due to obfuscated JavaScript content. The embedded JavaScript stream is the primary mechanism for exploitation. While the document body is unreadable, the presence of JavaScript and XFA form elements strongly suggests an attempt to exploit PDF vulnerabilities or trick the user into executing malicious code. The script likely downloads and executes a second-stage payload, though its exact function cannot be determined due to obfuscation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9615
Heuristics 5
-
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
-
JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
-
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.
-
XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
-
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.js0cde0fc2c31a25a43cafbe3c5478e2084805be37f2212d3baca47c556f5afa2f |
pdf-javascript-stream | PDF /JS object 12 at offset 0xA1FB | 3785 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.