PDF static analysis report

Static analysis result for SHA-256 557e2d6fac3b2a5e…

SUSPICIOUS

PDF

25.6 KB First seen: 2026-05-30
MD5: f53a0e0e4200e9934e72a90b322e0378 SHA-1: b93a17547816da9d02183242bbfadb2ceb0d3593 SHA-256: 557e2d6fac3b2a5e7cb70216c2a9252b32e7f3008b7f624468e999f2c8b687a4
50 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0072

Heuristics 3

  • Clickable URL embeds a recipient email address as a tracking parameter high PDF_URL_RECIPIENT_EMAIL_PARAM
    PDF has a clickable HTTP(S) action whose URL carries a recipient email address as a query parameter (e.g. '?e=victim@example.com') on a host that is not known-good. Phishing kits stamp the target's address into the link so the landing page pre-fills the credential form and tracks the open per recipient; a delivered legitimate link rarely carries the recipient's address in cleartext. Complements PDF_URL_MAILMERGE_PLACEHOLDER, which catches the unrendered token.
  • External URI low PDF_URI
    PDF contains an external URL action
  • 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 https://hakumonkai.org/fukkou/ref.php?url=https://vets4pets.nz/public/go.php?email=fleet-scotland@ogilvie.co.uk PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text
🗂 Part of campaign: shared payload 99ad8546da 13 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000bd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD8 19140 bytes
SHA-256: 1d975c9593415dbd66a743016f842d0b20f9c8fc8887c572fe5387dd52b9eb27
font_01_sfnt_off00003337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3337 15892 bytes
SHA-256: 99ad8546dad29e7bf686b854933af3e4868c1b561453de5b001ef0244aae4174
font_02_sfnt_off00004e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E25 13532 bytes
SHA-256: d9b7e4694a62f4cc2dc10cb17c4d45e5943b9ae0da3fc96fd732b2b28ab45ce4