PDF malware analysis — malicious · 6a79932756b34f1c

MALICIOUS

PDF

6.5 KB Authoring application: Tisilarehaue (via af190Tibedegabala)

MD5: c10f4d252ea83490066ed57370f20e24 SHA-1: c8784a933902f72ac8a53250bce9c9ff7ed55347 SHA-256: 6a79932756b34f1cb76731389f21f1c8b57e778ee5e628e2ebe6a49f3a2345f4

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, flagged by multiple heuristics and a high ML score. The JavaScript appears to be obfuscated and attempts to decode a string which is then evaluated. This pattern suggests the PDF is designed to exploit a vulnerability and download or execute a second-stage payload. The ClamAV detection 'Pdf.Exploit.Agent-36142' further confirms its malicious nature.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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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