PDF malware analysis — malicious · ceadfac73e1d4703

MALICIOUS

PDF

2.4 KB

MD5: 7c9833e84bc5607a93604627ed2924fd SHA-1: 9f1e71e73512c517d73113009bac9b52c884a8d6 SHA-256: ceadfac73e1d47035821cb1eb1da5b3054447d2ce57fab81f45b2380b724f28c

74 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript and utilizes ASCIIHexDecode and ASCII85Decode filters, which are commonly used to obfuscate malicious code within PDF documents. The ML classifier strongly indicates malicious intent. While no specific exploit or payload is detailed, the presence of these elements suggests an attempt to execute arbitrary code, likely for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

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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