PDF malware analysis — malicious · 319eb784401a9b1c

MALICIOUS

PDF

4.7 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: dd7118633de8ee387ef423c73abc0de4 SHA-1: 56f7d978a94de2ecae40e6b285168b004227d92d SHA-256: 319eb784401a9b1c3b15354fd9ef06d83fb98a0920f9a0bbbf657419dfaf35b5

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF file was flagged as malicious by an ML classifier and contains embedded JavaScript. The JavaScript stream exhibits obfuscation indicators and includes an eval() call, strongly suggesting it's designed to execute arbitrary code. The primary function appears to be downloading and executing a secondary payload, though the exact URL or execution chain could not be fully reconstructed due to obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `6dd1bac27ebe84608393491781a2999e9a340411af55e02f672883014b82e73f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36B	6567 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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