PDF malware analysis — malicious · 1409c1ff4c2ba04e

MALICIOUS

PDF

6.5 KB Authoring application: Tisilarehaue (via 4fd2dTibedegabala)

MD5: 6984273daeaa4da88cd5f423787a0c67 SHA-1: 73606688d36c13245d8d39831d3000d470304ede SHA-256: 1409c1ff4c2ba04ee099de4935d6cf59a673873cf2de2396402eb0e57d2f1460

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-confidence ML classifier. ClamAV also detected it as Pdf.Exploit.Agent-36142. The JavaScript code appears to be obfuscated but attempts to construct and evaluate a string that likely leads to the download and execution of a secondary payload, indicated by the use of 'eval' and string manipulation functions. The primary attack vector is likely spearphishing attachment, leading to client execution via the exploit.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

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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