PDF malware analysis — malicious · 490be19a6646ee96

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: 89185cdd48cc504ab10ed70251baab38 SHA-1: cc64678e9a904173dbd7ab39afc67f7650f70f4e SHA-256: 490be19a6646ee968e0061228f332295532fa162b77e493f836518025f81cb54

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The PDF contains embedded JavaScript, indicated by multiple heuristic firings. ClamAV detections confirm the file is malicious, specifically identifying it as 'Win.Trojan.Agent-36166'. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, which is a common technique for this type of threat.

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` `0e89b6b8c3f7fb13ab35463e687668e9296efa1a2e4d7ab3b028d448d7007d2a`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74597 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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