PDF malware analysis — malicious · 47b7cbfb6bbd722b

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: 6c3626638a2b8a91e2f04f92fd8bd34f SHA-1: 20204a4aa7059f90903b90ac907ffb8cfb71ffba SHA-256: 47b7cbfb6bbd722b3fd8496dac81da05e3ae9f5ddbe9621873bb444613f7e993

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings. ClamAV signatures identify the file as 'Win.Trojan.Agent-36166', suggesting it's a known trojan. The embedded JavaScript is likely responsible for executing the malicious payload, although its specific actions are not detailed in the provided evidence.

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` `0379499082f4ab923a90c9a7127ed830057de7b497b8d320c0731e3294e7ae7b`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74801 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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