PDF malware analysis — malicious · 020256373c3cb189

MALICIOUS

PDF

16.0 KB

MD5: 4f9028fe11a852cad8f381b928a0f128 SHA-1: 1366e30f6de6ebe3cbda197e26dd0157bab6bec3 SHA-256: 020256373c3cb18969edbda113c160bcf0bdeb78ff118dab8b3d97987acf865d

106 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV specifically identifying it as 'Pdf.Exploit.Agent-36324'. Embedded JavaScript was extracted, indicating an attempt to exploit the PDF viewer to execute code. This JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial compromise.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
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_obj0076_000.js` `ecf8e643ebe09ab40a03b89766245580a11b8920f05e138b0db45410b9ad3daa`	pdf-javascript-stream	PDF /JS object 76 at offset 0x2D4	15447 bytes

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