PDF malware analysis — malicious · 4ab568efbe7e76fd

MALICIOUS

PDF

2.7 KB Created: 47 Authoring application: 4163

MD5: da85c869db1aa72185c55de153cb8149 SHA-1: 5a80ff3083a54a154dc62e2166ef298288cd4c3a SHA-256: 4ab568efbe7e76fdd1e9916c214dca4613cf0debb746bfcd587ee24e7c35b008

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of an extracted JavaScript file. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript is the primary mechanism for exploitation, likely serving as a downloader for further malicious activity. The file's structure and the nature of the embedded script point towards a common PDF exploit delivery method.

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` `93d65e233047acdc7dfb71cbc61f488713c2f8d3c09313e231f9bc827eae6d8d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4814 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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