PDF malware analysis — malicious · 566fc679d142dde1

MALICIOUS

PDF

15.8 KB

MD5: 2ea79d5cb7f73de11f04da751eacc9b8 SHA-1: a55ab96f61057cd9dee7a790555d19d1822e6046 SHA-256: 566fc679d142dde1c812743cccf03488841d51528f55a7d0129ce8ee8e75ef49

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ClamAV detection 'Pdf.Exploit.Agent-36086' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript, although not fully detailed here, is the likely mechanism for delivering the exploit. The document body is unreadable, but the presence of JavaScript and the ClamAV signature point to a malicious exploit delivery.

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` `120cbc8c4916719557f811b53c6df61582529f51ebd3bb61f5b21b3170e491d2`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	424614 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 42 long base64-like blob(s).

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