PDF malware analysis — malicious · 463e6113c596a61d

MALICIOUS

PDF

65.4 KB First seen: 2026-06-11

MD5: 05e0bdd44cdeef43ad1c613b090fc09b SHA-1: 174d1bb97860d4368dcccb7e82bf5ec7dced0c0c SHA-256: 463e6113c596a61d9eb3c3ab9822ea789986a281f6204010036143cf8f82a02f

130 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9870

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	49664 bytes
SHA-256: `f44bfe49ef525e4bf6735c6700d1f48badb6c18169bd0906e85c002195c717c2`
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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