Malicious PDF — malware analysis report

Static analysis result for SHA-256 9307eafc75de8905…

MALICIOUS

PDF

244.6 KB First seen: 2026-05-10
MD5: 6e1a3ae771d63a36b36c1eff2bfb0fce SHA-1: ecd4075abc73f86874594f70318ef7d868bc4565 SHA-256: 9307eafc75de8905369c87aadc9249b7d55a6c9b96cca1fe01eaf1b713e5fec2
110 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9594

Heuristics 2

  • VBScript-style decimal byte array decodes to a PE payload critical PDF_VBS_DECIMAL_ARRAY_PE_PAYLOAD
    PDF comment text contains a VB/VBScript-style decimal byte array, such as c(077),c(090), that decodes to a verified Windows PE executable. The rule is gated on a comment-line Array(c(...)) assignment and a valid MZ/PE header to keep false positives low.
  • Suspicious extracted artifact medium 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.

FilenameKindSourceSize
decimal_array_pdf_pe_00000229.exe embedded-pe PDF raw comment decimal-array PE payload at offset 0x229 7225 bytes
SHA-256: 87d29cb86f748263398602a65a527b1e8566caee951c02ccad68b3365d387d8a
Detection
ClamAV: No threats found
Obfuscation or payload: likely
actual_type=PE; declared_or_context_type=PDF; filename=decimal_array_pdf_pe_00000229.exe; kind=embedded-pe Carved artifact entropy is 7.42, consistent with packed or encrypted content.