PDF malware analysis — malicious · 603ec22027f394f6

MALICIOUS

PDF

3.3 KB

MD5: 31bfca8599e2e05d42ee075c38ab1ff5 SHA-1: f98cfab75b6cc5bd484c25836b2cd9d785113fa0 SHA-256: 603ec22027f394f6d02d6c8e47e7829f3871d27fa13ac666692ba95096597e48

106 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file contains embedded JavaScript that is obfuscated but appears to be designed to execute a payload. The JavaScript attempts to extract data from the PDF's title field and then uses this data to call a function, likely to exploit a vulnerability and execute malicious code. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with an exploit targeting PDF viewers.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
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_obj0007_000.js` `5092b30ad3ccbfbd218edfded63ee3f0219b09f9b445b9d7c463e0c7a8e940bb`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA87	368 bytes

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