PDF malware analysis — malicious · 381f55ceb326e429

MALICIOUS

PDF

3.3 KB

MD5: c31bd1c02aca71638f39a9086f833cd4 SHA-1: 5077d6394719a49affa79166b912b6d8cd88e8fd SHA-256: 381f55ceb326e429b3328dce3196714e84aa7fb23d85701603f87c40582756fb

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF was flagged by ClamAV as Pdf.Exploit.Agent-36121 and a machine learning classifier with high confidence. Embedded JavaScript actions and streams indicate the presence of exploit code within the PDF, likely intended 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `a727afc0089e0ca0db228b8cce45a7620e68d2d84a5e983d2749b3b5d22e9703`	pdf-javascript-stream	PDF /JS object 7 at offset 0xA88	369 bytes
`stream_000_off00000152.bin` `d497e30ba33001b00973060b66c59592c938c554544c63b94a13f290f1441fde`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x152	13100 bytes

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