PDF malware analysis — malicious · 368d9f96a1176057

MALICIOUS

PDF

14.4 KB Created: 2009-11-15 19:41:70 Authoring application: PDF Library 4.3.9 (via PDF Library 3.9.7)

MD5: 4d6b52938ac99fb32beb83c6ac6c779e SHA-1: 2004fdecf9a8a6462f9b1bd475ca2d340816373e SHA-256: 368d9f96a1176057b983cff7b9f733a782161f07d690dd00fe3ed9ab000b198b

136 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. ClamAV detection confirms this file is malicious, specifically identifying it as Win.Trojan.Agent-36166. The embedded JavaScript is likely responsible for executing malicious code or exploiting vulnerabilities within the PDF reader. The document body is unreadable, so the exact lure cannot be determined, but the presence of JavaScript and the ClamAV signature strongly suggest a malicious payload delivery mechanism.

Heuristics 4

ClamAV: Win.Trojan.Agent-36166 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Agent-36166
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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` `ce5dc71be695a4d5769a0f4975a9dda3d4d6df38d080e00a0b1bca5d5016b6ba`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74766 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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