PDF malware analysis — malicious · 960e03278135b644

MALICIOUS

PDF

8.6 KB Created: 2010-06-21 11:06:57 Authoring application: Mejo jowazlo (via 0be5cRitpaqipaaqena)

MD5: 398fca0465861879284ef20f8e12e063 SHA-1: b3e3922dedf49f7db05ef35f65e9932f7a65a7f2 SHA-256: 960e03278135b644f8b55e131b01fad506f9d836369ba78d13904ddd456c02d3

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically targeting PDF reader vulnerabilities. The extracted JavaScript file, 'javascript_obj0015_000.js', is the primary artifact responsible for the malicious behavior, likely downloading and executing a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-30081 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-30081
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_obj0015_000.js` `71e88f83ad920db616ca791f93cb4f95f530cbe5b463455d2f46520750798017`	pdf-javascript-stream	PDF /JS object 15 at offset 0x172C	3018 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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