PDF malware analysis — malicious · 64c39269942a8c3f

MALICIOUS

PDF

3.3 KB

MD5: 22a43a80130f5d70b1cf23d277cec5a0 SHA-1: 8f62761354d7efd8a86290fa1fd1c5dc97594702 SHA-256: 64c39269942a8c3f2a2c31cc16b22e7c42808317034f91316b20d109ab71f16f

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, identified by heuristics and a ClamAV detection signature (Pdf.Exploit.Agent-36121). The JavaScript appears to decode a string from the PDF's title field and then execute it. This indicates an attempt to exploit a vulnerability within the PDF reader to achieve code execution, likely as a first stage for a larger attack.

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` `f1a16b98e0d2efe675c592e83f35e3b810fce48cc0baf6eca77de7aa3a0c74f6`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA85	332 bytes

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