MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.002 Spearphishing Attachment
The PDF was flagged by multiple heuristics, including a critical ClamAV detection (Pdf.Exploit.Dropped-78) and a high ML score, indicating it contains an exploit. The presence of an embedded script payload and an embedded file further supports this. The embedded URLs, while not directly malicious, are associated with XFA forms, which are sometimes used in PDF exploits. The exact exploit mechanism and payload are not detailed in the provided evidence, but the overall pattern suggests a typical malicious PDF dropper.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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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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Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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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/
- http://www.xfa.org/schema/xfa-data/1.0/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_file_obj0008.bin02948418a1970bbc4508daa6b92cfc9a5e0216a860f85801e090d511a95490ab |
pdf-embedded-file | PDF EmbeddedFile object 8 at offset 0xC6 | 11519 bytes |
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