PDF malware analysis — malicious · 7ad67abcb2b945b6

MALICIOUS

PDF

3.3 KB

MD5: 02d24457184f0f6cb09252bf00f94310 SHA-1: 83138bc5a73f217212e2e7fadbbcc7ab963847da SHA-256: 7ad67abcb2b945b6731f6a6ae8e868634ebf1147d6fc5c401b68616ab1325175

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 appears to be obfuscated. The script decodes a string from the PDF's title field, which is then executed. This behavior is consistent with exploiting a PDF vulnerability to download and execute a second-stage payload. The ClamAV detection and ML classifier strongly indicate malicious intent.

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` `4c19bb9d58a769ae822770df5b81c5882aca7041c203d825b5c8f4c0b91ed0b6`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA7F	341 bytes

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