MALICIOUS
84
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
The PDF file contains an embedded JavaScript stream which is flagged by multiple heuristics. ClamAV detection identifies the content as 'Eicar-Test-Signature', a standard test signature for malware. The JavaScript stream is the likely vector for this detection. No other malicious indicators were found.
Machine Learning
- Nyx PDF Classifier suspicious score 0.2835
Heuristics 5
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ClamAV: Eicar-Test-Signature critical CLAMAV_DETECTIONClamAV detected this file as malware: Eicar-Test-Signature
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
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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 (matched inside decoded stream)
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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.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/pdf/1.3/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off00000645.js5b63a8fcf81418fca6ef361c26feb0fd9e4cb14ce1e455faf9ac68b8871b256d |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x645 | 3314 bytes |
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