PDF malware analysis — malicious · a280c8c4920be3e3

MALICIOUS

PDF

2.7 KB Created: 9314-01-01 Authoring application: 6077

MD5: b1d2cdb0ae10a2f1abfbd1af9f809d45 SHA-1: f290a6a2b473d7c1717201a03ac40d32bd17a9c0 SHA-256: a280c8c4920be3e371fd3d2594a411ca802ca0712907cceef06d06c95a8794db

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, as 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, likely contains the malicious code responsible for the exploit, although its specific actions are not detailed in the provided evidence. The presence of JavaScript actions and streams within the PDF points to an attempt to leverage these features for malicious execution.

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` `510ffe9ea76fd8daa28679eb174e6e6ce847ee9f1379015cbd68dd7fed3ecb4d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4843 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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