PDF malware analysis — malicious · f336c83b4bd6aac8

MALICIOUS

PDF

2.7 KB Created: 8117-01-01 Authoring application: 3872

MD5: 2b5b39066ccd41ae7b7eba89b94127d5 SHA-1: 1b8ff043404694a593ef3a655c051cc2d8028e0e SHA-256: f336c83b4bd6aac8e015a281e3b8f4e7fc5d381b8c0012475eb5a6001b99bb91

128 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36014' and an ML classifier. It contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS firings, and a suspicious extracted JavaScript file. The ML classifier's high confidence score suggests a known exploit pattern. The primary attack vector appears to be the execution of embedded JavaScript, likely to exploit a PDF vulnerability.

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` `c3f683cc7767741d87a55a13d2ad4dd4c37ff3389feed4f1873310a26fd67d31`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4745 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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