PDF malware analysis — malicious · e4b9be0fc6dcf591

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: 94f970b03043e0e42ee0694ee7bb973c SHA-1: 609bbbd256b5344af32b71b6c143e4c3ecdc0fe1 SHA-256: e4b9be0fc6dcf5916c852dfe90eccf3c43d53d9dca23e84a9c664693bc3a78b8

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The file is a PDF containing embedded JavaScript, as indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) confirm its malicious nature. The embedded JavaScript is likely responsible for executing the malicious payload, although its specific actions are not detailed in the provided evidence. The document body is unreadable, providing no further context.

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` `a278fb148b92fee1c575bc7bc8a1793183c86bde4a99d220554cd21a5c24f04a`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74935 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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