Win.Trojan.Agent-36166 PDF malware analysis — malicious · be83a0e51875eb7a

MALICIOUS

PDF

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

MD5: 54d2e4625eaca3d9e36c1e50f87c8fe0 SHA-1: 2ec2d96fd1fc9d6bf3fe333e18510233dab67956 SHA-256: be83a0e51875eb7ac4ecd409a86518c02451c2398fbbe9a3f9269d9824bcee22

136 Risk Score

Malware Insights

Win.Trojan.Agent-36166 · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, which is a common technique for delivering malicious payloads. ClamAV detections confirm the presence of malware, specifically identified as Win.Trojan.Agent-36166. The embedded JavaScript likely facilitates the execution of this malicious agent. The file's SHA256 hash is be83a0e51875eb7ac4ecd409a86518c02451c2398fbbe9a3f9269d9824bcee22.

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` `d98fe950d7c6bc7796629e0026ea7c01ecfa2d9899c12a76fce91b8b74553b2d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75903 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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