PDF malware analysis — malicious · 329dbc73c9cb5a6e

MALICIOUS

PDF

7.7 KB Created: 2009-10-13 19:42:38 Authoring application: PDF Library 7.1.10 (via PDF Library 3.7.1)

MD5: 86effe7a00da585947b11abf682115eb SHA-1: f3b636143f2e33f7db4cf2110be56127e91a6cae SHA-256: 329dbc73c9cb5a6e7ed2b052149338be8a2026c0c5363fb25749d8ca55e6c195

116 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and uses ASCIIHexDecode filters, indicating an attempt to obfuscate malicious code. ClamAV detected this file as Pdf.Exploit.Agent-3690, confirming its malicious nature. The embedded JavaScript is likely responsible for executing the exploit, leading to the download or execution of a secondary payload.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-3690 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-3690
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0007_000.js` `2d82bbc84a9fc552484fa4d2829d105f74109a05f9b46338e40ec073590a7262`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	37737 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long hex-escaped blob(s).

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