PDF malware analysis — malicious · ac4c248eb05bd362

MALICIOUS

PDF

2.7 KB Created: 8489-01-01 Authoring application: 3093

MD5: ef0fe23b46d34c8d594779358df2e63d SHA-1: b34d249b1ddfaa5f179d3c05f5b27195e2b039bf SHA-256: ac4c248eb05bd3622a4114c9dc3c523677bc0cf423786f6b8913ed8194824717

126 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 exploits. The extracted JavaScript file, 'javascript_obj0013_001.js', shows signs of obfuscation and is likely responsible for downloading and executing a second-stage payload, contributing to the overall malicious nature of the document.

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` `1618bad9689aaa4170e5888f6042dd8bedf39743c0c6bb7588b5dc3d02dfd75b`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4792 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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