PDF malware analysis — malicious · d56e7b3d14fe3c81

MALICIOUS

PDF

3.3 KB

MD5: b865f36e89cbe8c66e142fb6f837fdcd SHA-1: 0dfc77302d8220fc03291e83d8c38c26cb7c52c0 SHA-256: d56e7b3d14fe3c81350f8c24f74850d002beda880cb7d2fa0c488770cd8a0dbb

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged as malicious by a machine learning classifier and ClamAV with the signature Pdf.Exploit.Agent-36121. Embedded JavaScript was detected, indicating an attempt to exploit PDF vulnerabilities. The ML classifier's high confidence score and the specific ClamAV detection suggest this is a known exploit, likely used to download and execute a second-stage payload.

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` `63b06276ea57b6a93498d66650afd65a141aeb2e996857a8c9ebe68d61e6d7cc`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA85	345 bytes

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