PDF malware analysis — malicious · 36f5a791cf305b59

MALICIOUS

PDF

2.7 KB Created: 7104-01-01 Authoring application: 2191

MD5: b8b36b8b4e29a6a8309d951dd8b3fe78 SHA-1: b8bfe4d54924c01dcd571656c5d2240b800162f1 SHA-256: 36f5a791cf305b59e66a4da4bdf55da5db42a46251aff67ea857b89c83125e0d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious JavaScript

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 a known exploit. The embedded JavaScript, although not fully detailed in the provided evidence, is the likely mechanism for executing the exploit and downloading a secondary payload, a common attack pattern for malicious PDFs.

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` `f0b4733018a041120ca85b81d1ef3c35620ef9715db193241ce0efd3f9c83cba`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4798 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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