PDF malware analysis — malicious · 163ac7f25485b5fc

MALICIOUS

PDF

16.2 KB Created: 2010-03-05 15:19:50 Authoring application: Laxiwoveja

MD5: b07553a1c20580ad4e8233d8b2c49fae SHA-1: e2f30aebcefa9165e15f62406c23b015e547e8d5 SHA-256: 163ac7f25485b5fca8e2c58f09c66a8af3f6a139c895b370a5df21c77dac3533

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of a large JavaScript stream. ClamAV also detected this as Pdf.Exploit.Agent-36066. The JavaScript is likely responsible for executing malicious code, potentially downloading further stages. Due to the large size and truncated nature of the script, its exact function cannot be fully determined, but the overall pattern suggests a malicious exploit document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36066 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36066
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_obj0022_000.js` `22e7b9b95199cc294a88baec03e968aa698abb89fdbf202e98b946c7b2639771`	pdf-javascript-stream	PDF /JS object 22 at offset 0x30AF	971255 bytes

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