PDF malware analysis — malicious · ee041a18891b9fe3

MALICIOUS

PDF

10.7 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 9e5e619cad9295f15cc8fb8855d4ee69 SHA-1: 44ff4457c073c9fca974924fd484bcee1317405a SHA-256: ee041a18891b9fe3a6013cf97d7b91863e9685b899528686e2b1ddd695df62bb

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF file was flagged as malicious by an ML classifier and contains JavaScript with eval() calls. The JavaScript appears to be heavily obfuscated, but the presence of eval() suggests it's designed to execute arbitrary code. The primary intent seems to be downloading and executing a second-stage payload, as indicated by the ML_NYX_PDF_MALICIOUS heuristic and the PDF_EVAL firing. No specific family could be identified due to the 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
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_000.js` `700e8845fff7684cf4a596c0b3d43cde2e214139b012ee86d8c06db28d81e801`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	9444 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 6 long base64-like blob(s).

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