PDF malware analysis — malicious · 937b7586120370a4

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: 11fb17626d8d99256b579e816fd22932 SHA-1: 2efa2b611517e89bc005cd22e5a40cf38e15870f SHA-256: 937b7586120370a4c3f0909b064a190be125c15e7478d6bc4d0af40718488af4

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. ClamAV identified the file as Win.Trojan.Agent-36166, suggesting it's a known malicious agent. The embedded JavaScript likely attempts to exploit vulnerabilities or download further malicious content, aligning with common PDF-based attack vectors.

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` `89db0a645549196490807946e2a6909edf062e7eb106b80a4766267f1d85c697`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74955 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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