PDF malware analysis — malicious · d46739c9c847d4e8

MALICIOUS

PDF

3.2 KB

MD5: e5706ffc959f64d4d2e0d03f0f1dd6f5 SHA-1: 624353fe100af0c93d5890ee5cc21ee46621162f SHA-256: d46739c9c847d4e85d0becb6ab72542d988d2283e471d40f0abdae7aa26ccdc7

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/Shell Script Execution: JavaScript T1204.002 Malicious File: Malicious JavaScript

The PDF file was flagged by ClamAV as Pdf.Exploit.Agent-36121 and a machine learning model indicated a high probability of maliciousness. Static analysis revealed embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities to download and execute further payloads. The ML classifier output of 0.999922 strongly supports the malicious classification.

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` `51301b87796739154ba3a2cd589cc46ed9eb90e9efd2bc7a061e1fe619320e35`	pdf-javascript-stream	PDF /JS object 7 at offset 0x9C8	501 bytes

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