PDF malware analysis — malicious · 4c5bac3b2a31e1eb

MALICIOUS

PDF

2.7 KB Created: 2466-01-01 Authoring application: 4022

MD5: b1206cb9fc494914e12c77fed12bc33a SHA-1: 4c37b3d5cbb1678c5bef1d395bef7f00d981601f SHA-256: 4c5bac3b2a31e1eb344eb82f896f3de9619fef56affdd784a2e8f4a303c3f5e6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ClamAV detection 'Pdf.Exploit.Agent-36014' strongly suggests a known exploit. The extracted JavaScript file, 'javascript_obj0013_001.js', likely contains the malicious payload. The obfuscation indicators in the extracted artifact further support malicious intent. The exact exploit and payload are not fully discernible without further dynamic analysis, but the pattern points to a JavaScript-based PDF exploit.

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` `87b820d4e0041b36e1d0458b26bb084026eb776ea09b9a19045f9b875a0c4fd5`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4794 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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