PDF malware analysis — malicious · a94d1920f6f8d753

MALICIOUS

PDF

29.0 KB

MD5: b0de30055ae5dd1f96343eedd6686e57 SHA-1: fcd2b4aa30a65942a805878aba040d7f61dfcfde SHA-256: a94d1920f6f8d7538d54767f974d2ed0409c6a0a231bde3f808b3c021f3a7c18

134 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, which is flagged as malicious and correlated with other PDF-specific exploit indicators. The ML classifier also strongly indicates maliciousness. The presence of JavaScript actions and embedded JS streams suggests an attempt to execute malicious code, likely to exploit a PDF vulnerability.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

Correlated malicious PDF JavaScript signals critical PDF_CORRELATED_MALICIOUS_JS

PDF JavaScript or auto-action content is corroborated by exploit staging, ML, or suspicious extracted-artifact findings. This correlation promotes old exploit-kit PDFs that otherwise remain in the suspicious band because each individual signal is intentionally weighted conservatively.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation

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