MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 JavaScript/Shell Scripting: JavaScript
T1566.002 Phishing: Spearphishing Attachment
T1027 Obfuscated Files or Information: Obfuscated Files
The PDF file contains embedded JavaScript and utilizes ASCIIHexDecode and ASCII85Decode filters, indicating obfuscation and potential exploit delivery. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The presence of JavaScript actions and streams strongly suggests an attempt to execute malicious code, likely to download and run a secondary payload.
Heuristics 5
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ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTIONClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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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.
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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.
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ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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