MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The file is identified as malicious by multiple heuristics, including a critical ClamAV detection for 'Win.Trojan.Agent-36166'. The presence of embedded JavaScript, flagged by PDF_JAVASCRIPT and PDF_JS heuristics, indicates an attempt to execute code. This JavaScript is likely responsible for downloading and executing a secondary payload, a common tactic for this malware family.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
Heuristics 4
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ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Trojan.Agent-36166
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ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0007_000.jsc0d2a915c38f49ce43dbeda965994ded43cfc7998b4c1526d6fc10cd85455824 |
pdf-javascript-stream | PDF /JS object 7 at offset 0x1A5 | 74379 bytes |
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Detection
ClamAV:
Win.Trojan.Agent-36166
Obfuscation or payload:
unlikely
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