PDF malware analysis — malicious · 723d3abe2d92419f

MALICIOUS

PDF

3.3 KB

MD5: 7e3f4441785248e4f1b1a9ce2c6a6cd6 SHA-1: 3d85e195d7ea4837eaae7d9680d4f883992ea983 SHA-256: 723d3abe2d92419f233b34f9f841329c68825ddb60ce7dc56d38faebf5da60ad

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 ML classifiers and ClamAV as malicious, specifically detecting an exploit. Embedded JavaScript was extracted, which appears to be designed to execute a command based on the document's title. This JavaScript likely serves to download and execute a secondary payload, a common technique for initial compromise.

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` `9ba7590a22a1179ee11ed1072ab81d02e9122ef60fa527b504b614607836ba3e`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA84	338 bytes

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