PDF malware analysis — malicious · 50520d04013acc76

MALICIOUS

PDF

2.7 KB Created: 7675-01-01 Authoring application: 9353

MD5: dae4e128c24a6a0005e179f8173b534e SHA-1: a29881661216dd4c6b3e417ded15e146d544dc27 SHA-256: 50520d04013acc76c89e2d84fdffd0280810ce736646f5d81586be2b9c3ed226

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent. The extracted artifact 'javascript_obj0013_001.js' likely contains the malicious code responsible for the exploit, possibly leveraging obfuscation techniques as noted in the static triage.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `76ae9e459893b8f69245926c7310abe31e042f3a67dc26183e71128874c4272c`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4747 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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