PDF malware analysis — malicious · fda6ab02a5080e15

MALICIOUS

PDF

733 B

MD5: 108c3027d61b2c7328a490bcf3a6c330 SHA-1: a44bba5b05c53189c2cedf29e378f1030d1c55ed SHA-256: fda6ab02a5080e154429af213ce63d4ca02381e6f9e33dbdfb494a4b0a7c151f

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious Link: Malicious File

This PDF file was flagged as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection. It contains embedded JavaScript, which is often used to exploit vulnerabilities or download secondary payloads. The presence of `unescape()` and ML_NYX_PDF_MALICIOUS strongly suggests an exploit attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 5

ClamAV: Pdf.Exploit.Agent-35905 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35905
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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.
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_obj0005_000.js` `d8a6b4ad1abf04d0c4a4f89535cfb57f7312edef25c443f4e844c8ec9d0929dd`	pdf-javascript-stream	PDF /JS object 5 at offset 0xFA	352 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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