PDF malware analysis — malicious · 7ab8b467103561d6

MALICIOUS

PDF

66.0 KB First seen: 2026-06-10

MD5: 277f3e451bc7c72227799ca39c0c797b SHA-1: ae08cd4845236d3b4082e1ec1b14b58d3cd6199a SHA-256: 7ab8b467103561d66bc71159e72d8690abf00ba7c4116c00cf4e40085b570588

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	50176 bytes
SHA-256: `5b769a28c7e08da5f7edb6c6291d388c99606cadad04e3b187ac506f07fd5a45`
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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