MALICIOUS
110
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically identifying it as Pdf.Exploit.Agent-36874. The presence of XFA forms and AcroForm buttons suggests an attempt to leverage PDF features for exploitation. The ML classifier's high output score further supports the malicious nature of the file. No scripts were extracted, but the file's structure and heuristic firings indicate it is likely an exploit delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 4
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ClamAV: Pdf.Exploit.Agent-36874 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36874
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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AcroForm button with action trigger low PDF_ACROFORM_BUTTONPDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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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 |
|---|---|---|---|
stream_001_off000008ed.bin022ca9c41d3b944cabf68dbf00fa76ece59c0801ee7eac194426c19238db091b |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x8ED | 1434 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 long base64-like blob(s).
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