MALICIOUS
178
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file contains an embedded script payload and utilizes XFA forms, both flagged as malicious by heuristics. ClamAV detections indicate it's a known exploit, likely Pdf.Exploit.Agent. The embedded URL is likely part of the exploit chain. The ML classifier strongly suggests maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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ClamAV: Pdf.Exploit.Agent-36789 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36789
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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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Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOADPDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://www.xfa.org/schema/xfa-template/2.5/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_00000325.bin8dcd55d47acedfcb4b6dfaf7a14c4e1af268ca9fb69a6b5ffcd4df3f6e93d340 |
pdf-embedded-script | PDF raw stream script payload at offset 0x325 | 18048 bytes |
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Detection
ClamAV:
Pdf.Exploit.Agent-36809
Obfuscation or payload:
unlikely
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