PDF malware analysis — malicious · ecbe098baae39a98

MALICIOUS

PDF

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

MD5: c30a05f1d6a3ca08e6fcf60e7d62aa1a SHA-1: 516012cbcd40cac35b8df9437c976cc3978bc6ad SHA-256: ecbe098baae39a98af3023269b803e95b617a901fb08f7360f9d560a0987f81b

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains embedded JavaScript that utilizes an eval() function, a common technique for obfuscating malicious code. The script appears to reconstruct and execute further JavaScript, likely to download and run a secondary payload. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with an exploit delivery mechanism.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
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` `504d1bf510c07bdcbe728cd6095272ecf9ca961c8cabb21577d3a62e03035621`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13316 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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