MALICIOUS
130
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious File Execution
T1204.002 Malicious File Execution: Malicious PDF
The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious content. The 'PDF_EMBEDDED_SCRIPT_PAYLOAD' and 'EXTRACTED_FILE_STATIC_TRIAGE' heuristics suggest the presence of an embedded script or payload within the PDF stream, likely intended for execution. The ML classifier's high confidence score further supports the malicious nature of the file, which is identified as Pdf.Exploit.Dropped-156969-1 by ClamAV.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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ClamAV: Pdf.Exploit.Dropped-156969-1 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Dropped-156969-1
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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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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_file_obj0010.bin8ba5fd507ab031fa282f936852bda56e18da64f796cf0862f9c51732fa6aec59 |
pdf-embedded-file | PDF EmbeddedFile object 10 at offset 0xCB8 | 7229 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 4 long base64-like blob(s).
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