PDF malware analysis — malicious · 793050355994cdaf

MALICIOUS

PDF

68.0 KB First seen: 2026-06-10

MD5: 0a437e777478edc3d2526a9e472b0984 SHA-1: 8f1d290063e4869bedef2f465e59ba1cf973f145 SHA-256: 793050355994cdaf9de1f0e6c5dd0f14b8f893b8df59300ef42fae617747371f

130 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9952

Heuristics 2

Base64-encoded Windows executable payload in PDF critical PDF_BASE64_PE_PAYLOAD

PDF text contains a long base64 blob that decodes to a verified Windows PE executable. This catches payloads hidden after EOF, inside comments, or in plain text outside normal PDF streams.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`base64_pdf_pe_00000284.exe`	embedded-pe	PDF raw base64 PE payload at offset 0x284	51712 bytes
SHA-256: `39db727b79901876a4b4db1f4f0d1fba804afd46e74f4e83cd9832d3e3d2988f`
Detection ClamAV: No threats found Obfuscation or payload: likely actual_type=PE; declared_or_context_type=PDF; filename=base64_pdf_pe_00000284.exe; kind=embedded-pe Static shellcode analysis recovered command string(s): PowerShell

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