MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The file is identified as malicious by ML classifiers and ClamAV, with ClamAV specifically detecting it as 'Pdf.Dropper.Agent-7328417-0'. The presence of embedded JavaScript, indicated by 'PDF_JAVASCRIPT' and 'PDF_JS' heuristics, suggests the document's primary function is to act as a dropper. This JavaScript is likely responsible for downloading and executing a secondary malicious payload, as evidenced by the 'Pdf.Exploit.Agent-35788' detection on an extracted artifact.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Pdf.Dropper.Agent-7328417-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-7328417-0
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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_obj0013_001.js3ecb9788b3477454cda59f8ce254cea363da1a5c92f539b566fe8a988d925ce8 |
pdf-javascript-stream | PDF /JS object 13 at offset 0x37E | 30595 bytes |
|
Detection
ClamAV:
Pdf.Exploit.Agent-35788
Obfuscation or payload:
unlikely
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