PDF malware analysis — malicious · 20066f84135917af

MALICIOUS

PDF

1.2 KB

MD5: af0fac507b5bb53f3cad31de9a8c7890 SHA-1: f8ef1fbab2d790e7e72c3004d7db0d1ad17360bf SHA-256: 20066f84135917af22b6a52ad2a85132de8846ddcd72db27ddf8351adc4f04cc

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, flagged by multiple heuristics as suspicious and obfuscated. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript, named 'javascript_obj0006_000.js', is likely responsible for executing the malicious payload, though its exact function is obscured by obfuscation. This points to a common attack pattern of using obfuscated scripts within documents to deliver malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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_obj0006_000.js` `6954a9e92adbe0c85cedfbfdbe2b6c894787bcdf59e5f4e571843d1aa41d97b9`	pdf-javascript-stream	PDF /JS object 6 at offset 0x211	301 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.