PDF malware analysis — malicious · 2246a21926a72f23

MALICIOUS

PDF

6.6 KB

MD5: 6b32f4ed791008f4f29d8f59fe1b7d56 SHA-1: c669e42d3da8e267cb8dbbd69a61533d86647700 SHA-256: 2246a21926a72f236875a4f57acc61aa244f80af186b694aceddd6872d9bd689

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 Scripting: JavaScript

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript uses String.fromCharCode for obfuscation, suggesting it's designed to execute malicious code. ClamAV also detected this file as Pdf.Exploit.Agent-36086, confirming its malicious nature. The primary attack pattern involves exploiting PDF vulnerabilities to run obfuscated JavaScript.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36086 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36086
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `dc5c170fe9ed14c13a9321f607b80cd616aa636930fab0eca3381efea7a10b72`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	137519 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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