MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file is encrypted and contains JavaScript, which is a common technique to hide malicious content from static analysis. Heuristics indicate it is an advance-fee scam lure, presenting fake lottery or prize information and requiring payment for parcel delivery. The presence of encrypted JavaScript suggests the document is designed to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier clean score 0.0039
Heuristics 3
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Encrypted PDF carries /js — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JSPDF declares /Encrypt and also references an executable trigger (/js). 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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Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LUREDocument contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LUREPDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
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