PDF malware analysis — malicious · 8005cc88721a7b18

MALICIOUS

PDF

66.7 KB First seen: 2026-06-10

MD5: c2f645fdde005eebe1b9dee48fa25ead SHA-1: 1efcd9bf81fdf100b3b846ad5caae038b4c04f5c SHA-256: 8005cc88721a7b1805fd5207dc6cdf51e375b851d52baf8aa3b804121f7d4824

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	50688 bytes
SHA-256: `da64fa3b70deb9edaf1a837ae2d79aee7662b575f6a836a12ed706a53cff1175`
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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