PDF malware analysis — malicious · 95e712661e183667

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: d58ecbd1fe0b486bf3f281d6856bc0da SHA-1: cc016bee2439ef8744f1d1d9b06d64caaacd82ff SHA-256: 95e712661e18366729a000a504e78c7e0aa19422b04695482dab3ccc2a0a9537

136 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by ClamAV as Win.Trojan.Agent-36166, indicating a known malicious signature. Static analysis revealed embedded JavaScript, which is a common technique for delivering malware. The JavaScript stream, named 'javascript_obj0007_000.js', is the primary indicator of malicious activity, likely serving to download and execute a second-stage payload. The document body was unreadable, but the presence of JavaScript and the ClamAV detection strongly suggest a malicious intent.

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` `f7edcf6c52e07a92c226e02fa1effb0499541a1b5b7b8642e15ebce21c6d2e4c`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	74331 bytes
Detection ClamAV: Win.Trojan.Agent-36166 Obfuscation or payload: unlikely

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