PDF malware analysis — malicious · 20dd81772af89ece

MALICIOUS

PDF

69.5 KB

MD5: 963db8fe8751063e6cc102da75c0dc98 SHA-1: e9532bd02d7437e86badc62124e58d125836af29 SHA-256: 20dd81772af89eceb53d9e3d8bde44845bb93ae8ab4c06c00779006774c3c381

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1055 Process Injection

The PDF document contains a Base64-encoded PE payload, identified by the PDF_BASE64_PE_PAYLOAD heuristic. This payload is decoded and likely executed using process injection APIs such as VirtualAllocEx, WriteProcessMemory, and CreateRemoteThread. The embedded executable has a SHA256 hash of cac25a0c85ff0522a7105b86ac53326b6c5a8b9031d9ab76d5f39249c561bd20. No specific family could be identified, but the delivery mechanism is clear.

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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