PDF malware analysis — malicious · 0eaa46f721be1306

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: 73592807d32baf50b8d8a8e31c4644e7 SHA-1: 4fe0db4efdc8c5fcac1723f0531a93bdb44fe9f0 SHA-256: 0eaa46f721be1306857a3a0ef6bb21862a993d9f83b6e88afd998cf8d2942dec

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by multiple engines, including ClamAV which identified it as Win.Trojan.Agent-36166. The presence of embedded JavaScript, flagged by heuristics, indicates an attempt to execute code. The JavaScript itself is heavily obfuscated but appears to be designed to download and execute a second-stage payload, a common technique for malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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` `a774dafc4801a655ba3c983f7fbb040d5825ecfc3ef4bd7d99de9a2b75ad30fe`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75136 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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