PDF malware analysis — malicious · cd31f0c57b41e989

MALICIOUS

PDF

6.6 KB Authoring application: Tisilarehaue (via f9298Tibedegabala)

MD5: f2c0f46be973a3a7c9e8ae71dfe76658 SHA-1: c36303879d1f243f6d3c5247440ef7fe2096b09f SHA-256: cd31f0c57b41e9894d2827bc17e703ae6077f09bf2cd82d69adb908818e9ba78

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high ML classifier score indicate malicious intent. The PDF contains embedded JavaScript, which is a common technique for exploiting vulnerabilities and delivering further malware. The specific ClamAV detection name 'Pdf.Exploit.Agent-36142' suggests an exploit targeting PDF viewers. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload.

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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