Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfcdcdc908a67958…

MALICIOUS

PDF

2.0 KB First seen: 2026-05-11
MD5: a423bd4d66a1489471b594b152227995 SHA-1: fa475a052f28d2b883b393e8240948abec63b057 SHA-256: dfcdcdc908a67958a9ecd7f2cdff91825d368e850a7627f22a759ca43c7eb188
68 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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
  • 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 0x51 13387 bytes
SHA-256: d1f99852b021d45fe507a3f9f94ee0a0d9fa3f30025151fa0c3c0cadb1f6b9c9
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 0x587 8610 bytes
SHA-256: 4927a269728acc0e0eb23fbc3e5d609942930b3757ce1a09730f327ac5290f4d
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Static shellcode analysis found candidate code region(s). Indicators: heap spray 0x41 (A)

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