PDF malware analysis — malicious · be0a552cf48e4abf

MALICIOUS

PDF

809.3 KB

MD5: 37a9c45b78f4dee9da8fd8019f66005a SHA-1: 28575e005666e31419ecbfa6a65699c96f1d0568 SHA-256: be0a552cf48e4abf95678e14b63e4c0d334034294252629173493167702cdd60

114 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and the ML classifier strongly indicate malicious intent. The presence of embedded JavaScript, identified by heuristic firings, suggests the PDF is designed to act as a dropper. This JavaScript is likely responsible for downloading and executing a second-stage payload, which is a common technique for malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

Heuristics 4

ClamAV: Pdf.Dropper.Agent-7142700-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7142700-0
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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off0006d90c.js` `dcefc16710d335e69f60cdd8a0e174d43939d02eaa8dd4c6d7ce4ca63f06495b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x6D90C	289498 bytes

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