PDF malware analysis — malicious · 4256a07298d5844d

MALICIOUS

PDF

69.5 KB

MD5: 47e4d18f1abf0acddb0e711b615d18c1 SHA-1: 4b092a3a1bfc3e9e171c14eb00dd82a0ab0ad312 SHA-256: 4256a07298d5844d05dd8bc1ebdb2acea45efe71c8e100a0ea01d1499a4bd7c3

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059 Command and Scripting Interpreter T1059.001 PowerShell T1055 Process Injection T1055.012 Process Hollowing

The PDF file contains a Base64-encoded PE payload, identified by the PDF_BASE64_PE_PAYLOAD heuristic. This payload is likely designed to be decoded and injected into a running process using APIs such as VirtualAllocEx, WriteProcessMemory, and CreateRemoteThread. The presence of these indicators strongly suggests a malicious intent to execute arbitrary code.

Heuristics 1

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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`base64_pdf_pe_000002fe.exe` `cac25a0c85ff0522a7105b86ac53326b6c5a8b9031d9ab76d5f39249c561bd20`	embedded-pe	PDF raw base64 PE payload at offset 0x2FE	52736 bytes

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