PDF malware analysis — malicious · 96a84d8e3bcca37e

MALICIOUS

PDF

985 B

MD5: 314ad4c76941d3f26d85a64acde229e3 SHA-1: 5da61ea01feef07cb2937f9f6e99565be75268ed SHA-256: 96a84d8e3bcca37e7382fdfb4e62f0c0241f25afb44f318691769d04d4497990

74 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File

The PDF file contains embedded JavaScript and uses ASCIIHexDecode and ASCII85Decode filters, which are common indicators of malicious PDFs. The ML classifier strongly flagged this file as malicious. While no specific exploit or payload is detailed, the presence of JavaScript and decoding filters suggests an attempt to execute arbitrary code, likely for further exploitation or payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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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