Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ec761235f4726e…

MALICIOUS

PDF

244.6 KB First seen: 2026-05-11
MD5: 9d40ac1494090d174b62bc46cd0f2a4a SHA-1: 7c1f19534b16bc4d4f93e507e4b17261cd73eb44 SHA-256: 35ec761235f4726e287afdc4054246ef032f70d259fad1b0cfe15cf5aaccf729
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 14686 bytes
SHA-256: 1caad72ab3ed87eb15c909645872fb3f92bc9383715ce9b881d734113b34c4b5
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 7.74, consistent with packed or encrypted content.