MALICIOUS
108
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as Pdf.Exploit.Agent-36014. Static analysis revealed embedded JavaScript, indicating an attempt to exploit PDF vulnerabilities. The embedded JavaScript file, 'javascript_obj0013_001.js', is likely responsible for downloading and executing a secondary payload, which is a common technique for initial access.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36014
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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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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
javascript_obj0013_001.js4041dc123ea0c473c19809a7f724c0b0972c57660d9380270f660e1c1f102900 |
pdf-javascript-stream | PDF /JS object 13 at offset 0x328 | 3675 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 6 eval/decoder/string-building token(s).
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