PDF malware analysis — malicious · 5d6db446f5f57d99

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via 54d08Tibedegabala)

MD5: 1b813e64028297bb50e1cc944277d5df SHA-1: 57e0e744593e6c560b889e07e83fd2983a2e0dc1 SHA-256: 5d6db446f5f57d992642b33b9bc19c8e566b6713e6a1db37e851956538f6a5a4

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 that is obfuscated but appears to be designed to exploit a vulnerability and download a second-stage payload. The script attempts to reconstruct a URL using string concatenation and then execute it. The ClamAV detection and ML classifier strongly indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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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