MALICIOUS
84
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The presence of PDF_UNESCAPE and PDF_FILTER_HEX suggests an attempt to exploit a vulnerability within the PDF structure. The unescape function is used to decode a string that likely contains malicious JavaScript, which could lead to the execution of further payloads. The exact nature of the payload is not clear due to obfuscation, but the overall pattern suggests an exploit delivery mechanism.
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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