Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bf40b44a7f5c4e…

MALICIOUS

PDF

5.8 KB First seen: 2026-05-11
MD5: afb4d20d514a272955ada4dd108cec5e SHA-1: 24299e81bf14f1705be98caf790d996be0712266 SHA-256: 22bf40b44a7f5c4e74dca1c06f02b8b1db148937cdb0c80b63e8ba4f6eacbc3c
112 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • Suspicious extracted artifact info 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xdp/ In PDF document text
    • http://www.xfa.org/schema/xci/1.0/In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.4/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text
    • http://ns.adobe.com/xtd/In PDF document text
    • http://www.xfa.org/schema/xfa-form/2.8/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x55 7954 bytes
SHA-256: bd94af52618fc5e4eb5230bd635b13a12c4d69b274ed82872af46e7618795489
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
xfa_image_rawvalue_000.tif pdf-xfa-image-tiff XFA image/rawValue TIFF payload near offset 0x5B4 4494 bytes
SHA-256: d5d84e8a32ec4c828791ff131a46b27cf769e19e729968e63679bc01427d097d
Detection
ClamAV: Win.Exploit.CVE_2010_0188-7
Obfuscation or payload: unlikely

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