PDF malware analysis — malicious · a81e23cc1c0de5c8

MALICIOUS

PDF

6.6 KB

MD5: 1f89b5430662531d693a42fb61268bc6 SHA-1: 629575f6986763de55176968fea134ecf08689a9 SHA-256: a81e23cc1c0de5c8dfe440c1c6c20b5f990dc069f4d5a983eecbd6d3efa2516c

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The 'CLAMAV_DETECTION' heuristic identifies the file as 'Pdf.Exploit.Agent-36086', suggesting it exploits known PDF vulnerabilities. The embedded JavaScript is likely responsible for executing the exploit, although its specific actions are obfuscated. The document body is unreadable, providing no further context.

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` `c538ac6b6183dad7952fc74e5de787a1cd6666465f3a06bc075d85400057ed19`	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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