PDF malware analysis — malicious · e6631092cd9d2fbe

MALICIOUS

PDF

10.9 KB First seen: 2021-02-23

MD5: c7d25ff29d9aa24754ee7f4f37ecfdc5 SHA-1: 833995ca8e06f8c720fabd91d31cf4930cf9803f SHA-256: e6631092cd9d2fbe63f39a5f8a869bf76440981d71e782d131f8cd4ad614168d

166 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9987

Heuristics 4

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
Hex-obfuscated scripting name object critical PDF_OBFUSCATED_NAME_OBJECT

A PDF name object that drives script execution (/JavaScript or /JS) is written with #XX hex escapes to hide it from string-based scanners — e.g. /J#61v#61S#63r#69p#74 decoding to /JavaScript. Legitimate PDF producers always write these names literally; hex-encoding an executable name is a deliberate evasion used by exploit-kit and dropper PDFs.
JavaScript action low 1 related finding 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.

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