PDF malware analysis — malicious · 23ce5c22362a46ee

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: c67a9162cc36396d39c33af2c00fc888 SHA-1: a7554723f161bf1c61a1901edeccec744ece09ce SHA-256: 23ce5c22362a46eef6e43dbe2068191780f55ebdb3a34a365d29a1f0389dd6ce

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The 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, suggesting it's designed to execute arbitrary code. The primary attack pattern involves leveraging JavaScript within the PDF to deliver a malicious payload. 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 (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` `cee92858441f91c2941d05e9f96e1b6edb675b000686d09400df6db9546e0dc0`	pdf-javascript-stream	PDF /JS object 13 at offset 0x367	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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