PDF malware analysis — malicious · 13c1d8c156b229d0

MALICIOUS

PDF

69.5 KB

MD5: 965a1f0f30681c33224ee739f6217776 SHA-1: a3b7749b3bce87431710579560080168af8ef547 SHA-256: 13c1d8c156b229d06a86155320e176914ec9d40e17208d42f72e41c0a389bf75

100 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1055 Process Injection

The PDF document contains a Base64-encoded Windows executable payload. The heuristic indicates that this payload is likely intended for process injection using APIs such as VirtualAllocEx, WriteProcessMemory, and CreateRemoteThread. The decoded executable has a SHA256 hash of cac25a0c85ff0522a7105b86ac53326b6c5a8b9031d9ab76d5f39249c561bd20.

Machine Learning

Nyx PDF Classifier malicious score 0.9952

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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