MALICIOUS
114
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The PDF file contains embedded JavaScript that is obfuscated but appears to construct a string and then execute it using `eval()`. This JavaScript is likely responsible for downloading and executing a secondary payload, as indicated by the ML classifier and ClamAV detection. The specific string constructed and executed by the JavaScript is not fully reconstructible due to obfuscation, but the `eval()` call itself is a critical indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 4
-
ClamAV: Pdf.Exploit.Agent-23690 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-23690
-
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.
-
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENTOptional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0010_000.js6379efcb781d596b803b854413c710f7c9627940da7f8339d7341efbf646cb83 |
pdf-javascript-stream | PDF /JS object 10 at offset 0x89C0 | 1344 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.