PDF malware analysis — malicious · fe3c1eda80a43b4a

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: 53e8f17bb776d7d421d5d6f86d3e41ef SHA-1: 8c24df4332d77f1c31d04a9060de0c51f9a2c0db SHA-256: fe3c1eda80a43b4ad600b9a1e65eff049f60fd8c5ea7d5c48161cb364f23e27b

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV detections (Win.Trojan.Agent-36166) confirm the malicious nature of the file and an extracted artifact. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, contributing to the overall malicious intent of the document.

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` `819629a8e016aefd8ec4f031a4f2bbbc1edba61dc3d945a453d8304a127be72c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74358 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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