PDF malware analysis — malicious · ca66f4dd4a554541

MALICIOUS

PDF

2.7 KB Created: 777 Authoring application: 5519

MD5: 42c05204663a08498d3659ff6e4e3b13 SHA-1: 8f1bc31f0d49a1c819e35264571c0a4d79ad906b SHA-256: ca66f4dd4a554541f4286cbbc670b9a4f0f6ea6dda59913099c9a66e017b846a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests this is a known exploit. The extracted JavaScript artifact, 'javascript_obj0013_001.js', shows signs of obfuscation, typical of malware attempting to hide its payload. The primary attack pattern involves leveraging a PDF vulnerability to execute this script, likely to download and run a secondary payload.

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` `3b01772e2444d51815ee61ef252a47434d9b9642928a15bf7b6e0ce2eda76b0d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4805 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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