PDF malware analysis — malicious · a3f2bf8efdda7472

MALICIOUS

PDF

69.5 KB

MD5: 77b678800b1add6bf75126cb239324f4 SHA-1: 93d89fd57c3957d7b92c0c8770dddf40b149a022 SHA-256: a3f2bf8efdda7472b02a445c31e2f8e8325498f98a1ec4b5a0522e1d710dcbe4

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1055.012 Process Injection

The PDF document contains a Base64-encoded PE payload, identified by the PDF_BASE64_PE_PAYLOAD heuristic. This payload is likely intended to be decoded and executed, utilizing process injection APIs such as VirtualAllocEx, WriteProcessMemory, and CreateRemoteThread. The embedded executable's SHA256 hash is cac25a0c85ff0522a7105b86ac53326b6c5a8b9031d9ab76d5f39249c561bd20.

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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