PDF malware analysis — malicious · 56f3b15be49ccbbd

MALICIOUS

PDF

27.2 KB Created: 2010-12-30 24:64:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 1edb5a000d385c7ac6bf7901b3aebc72 SHA-1: 73f3c2ce7b2bd34c6607fe9b8c8b2ce41a5980e0 SHA-256: 56f3b15be49ccbbde2e00c710fcd000f2729c6ce59791bd48a0142a04e200637

64 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The presence of an eval() call and String.fromCharCode suggests the script is obfuscated and likely intended to execute arbitrary code, potentially downloading a second-stage payload. The document body itself is highly obfuscated and appears to be part of the script's payload rather than user-readable content.

Heuristics 4

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules.

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