PDF malware analysis — malicious · c1b8c1969ad295f5

MALICIOUS

PDF

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

MD5: 548e81f93965ca226712e4d6cfa1c5ef SHA-1: b5fcaba01fddff8ba2cf0c3e5f4a0d6d3bbcb84b SHA-256: c1b8c1969ad295f51b9f61a4d7123228befbfea9a0230b1b3f6475f0751c2667

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, which is a common technique for delivering malicious payloads. ClamAV detections of 'Win.Trojan.Agent-36166' strongly suggest malicious intent. The embedded JavaScript likely facilitates the execution of this detected malware.

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` `7fe69d02140277e614f8b9c47e28c3c9c229b7c147a9208c2ffdd1fefbebd7cb`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74315 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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