PDF malware analysis — malicious · 9d5b7906341eea56

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: 7fe1cd45acb7b2726b543aa754b773c2 SHA-1: ec3c2f75dea7e962c0b463c07d56440a6942d1a8 SHA-256: 9d5b7906341eea566e81f2eef0fd8449a715a93b80b4a060eda580afaf1f7cab

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript

The file is a PDF containing embedded JavaScript, indicated by multiple heuristic firings. ClamAV detection as 'Win.Trojan.Agent-36166' strongly suggests malicious intent. The embedded JavaScript is likely responsible for executing the malicious payload, although its specific actions are not detailed in the provided evidence.

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` `ee5c0e256f326fd2bebe1cb6525e91c8857f4d8bea72b27c5eebca8029e9a344`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74742 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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