PDF malware analysis — malicious · 0c9c92116263e009

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via b34cdTibedegabala)

MD5: 29f95c3fdc93ab7d3a2b54f35d5b7261 SHA-1: 076c95c2bb0defec97c9309f02269779b0cb48df SHA-256: 0c9c92116263e0090638bb333c035d718a693e2a5cd1aba205924b77f9a8c8d5

106 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file contains embedded JavaScript that is obfuscated but appears to be designed to decode and execute a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving exploitation of a PDF vulnerability to achieve code execution. The specific payload and its ultimate target are not fully discernible due to the obfuscation, but the pattern suggests a downloader or dropper.

Machine Learning

Nyx PDF Classifier malicious score 0.9987

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36142 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36142
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_obj0010_000.js` `d4dce4f95f7146e3b127d68edf45ceb045483a205d9e9a2a53d6e6b80d83b663`	pdf-javascript-stream	PDF /JS object 10 at offset 0x1230	1728 bytes

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