MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: Malicious JavaScript
The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted JavaScript file. ClamAV detections further confirm its malicious nature, specifically identifying it as a PDF exploit. The embedded JavaScript is the primary mechanism for delivering the malicious payload, likely involving the download and execution of additional malware.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Pdf.Exploit.Agent-36365 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36365
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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_obj0076_000.jsd5330a73c399524842b24bcfbdba397b6585bd693e121f61defaec57e061d22c |
pdf-javascript-stream | PDF /JS object 76 at offset 0x369 | 11850 bytes |
|
Detection
ClamAV:
Pdf.Exploit.Agent-36364
Obfuscation or payload:
unlikely
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