MALICIOUS
84
Risk Score
Malware Insights
MITRE ATT&CK
T1027 Obfuscated Files or Information
T1140 Deobfuscate/Decode Files or Information
The PDF file contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The script utilizes unescape() and ASCIIHexDecode, suggesting an attempt to deobfuscate malicious content. The reconstructed string 'unescape(a " " " " % u 0 c0 c % u 0 c0 c' is likely part of this deobfuscation process, aiming to download and execute a second-stage payload.
Heuristics 5
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unescape() call high PDF_UNESCAPEunescape() found — often used to decode shellcode in PDF JS exploits
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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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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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