MALICIOUS
118
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
The PDF file is detected as malicious by ClamAV with the signature Pdf.Dropper.Agent-1563940. It contains embedded JavaScript and is encrypted with an OpenAction, indicating that the malicious payload is intentionally hidden from static analysis. The JavaScript is likely responsible for executing the payload, which is a common technique for PDF-based malware droppers.
Heuristics 5
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ClamAV: Pdf.Dropper.Agent-1563940 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Dropper.Agent-1563940
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Encrypted PDF carries /OpenAction — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JSPDF declares /Encrypt and also references an executable trigger (/OpenAction). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser exited 1. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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