MALICIOUS
148
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File
T1566.002 Phishing: Spearphishing Attachment
The PDF file utilizes XFA (XML Forms Architecture) which is a known vector for exploits. A critical heuristic identified it as Pdf.Exploit.Agent-6136306-0, indicating a known malicious PDF exploit. An embedded script payload was also detected, likely responsible for executing the exploit. The embedded URLs, while not directly malicious in reputation, are part of the PDF's structure.
Heuristics 5
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ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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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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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://ns.adobe.com/xdp/
- 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_0000023e.binc43803ec429fa0900977bc26f8936f06596d306e393a83dc050f6f101b9be690 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x23E | 45852 bytes |
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Detection
ClamAV:
Pdf.Exploit.Agent-6136306-0
Obfuscation or payload:
unlikely
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