PDF malware analysis — malicious · e9a4fea2495c2cdd

MALICIOUS

PDF

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

MD5: c0dd7c537304005b3c213b0c9ae69add SHA-1: faf1650b8b8c67bda0cefac8b1f7b8161e42944e SHA-256: e9a4fea2495c2cdd260b4223aaa0ddef17138e57913ae487e328c8639cee21ab

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was identified as malicious by ClamAV with the signature Win.Trojan.Agent-36166. Heuristics indicate the presence of JavaScript actions and embedded JS streams, suggesting the file is designed to execute malicious code. The large size of the embedded JavaScript object further supports this. The document body content is unreadable, but the technical indicators point to a malicious script execution.

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` `f3d46979e4211604c8e901df9ced5930ff4f4c690947437ff5838bb7ff179e9e`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	75149 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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