PDF malware analysis — malicious · 3b051e30dd1b6691

MALICIOUS

PDF

2.7 KB Created: 7330-01-01 Authoring application: 444

MD5: f4d8b2c14b4d294f9fddaeb076590432 SHA-1: c91240c62f4e403d45948821ca92c0cb7cb658dd SHA-256: 3b051e30dd1b66912784e48553a44207cb98af0bd8f0bae019f5742888449c61

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. A machine learning classifier and ClamAV also flagged this file as malicious, specifically identifying it as Pdf.Exploit.Agent-36014. The extracted JavaScript file, 'javascript_obj0013_001.js', shows signs of obfuscation and is likely responsible for executing the exploit. The embedded URL heuristic suggests the script may attempt to download additional malicious content.

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` `0608c908901a6f1f7284d15b2de57763545838c029a9fb7b57769311cbb354c8`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4813 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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