MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF contains embedded JavaScript, as indicated by multiple heuristic firings and the presence of a JavaScript stream. ClamAV detections (Pdf.Exploit.Agent-36174) confirm its malicious nature, suggesting it exploits a vulnerability to run code. The ML classifier also strongly flagged this PDF as malicious. The exact JavaScript payload is obfuscated, but its presence and the ClamAV detection point to an exploit attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Pdf.Exploit.Agent-36174 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36174
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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_obj0015_000.jsd2679f3f15d6e025ee8c17fa18b94c5a0f309ff0925fe97138da94e5b5bbdf34 |
pdf-javascript-stream | PDF /JS object 15 at offset 0x1281 | 1504 bytes |
|
Detection
ClamAV:
Pdf.Exploit.Agent-36174
Obfuscation or payload:
unlikely
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