PDF static analysis report

Static analysis result for SHA-256 77ce057e23203ee7…

SUSPICIOUS

PDF

25.5 KB First seen: 2026-05-30
MD5: 41156e0462cf7b8dd2eeb247da12049d SHA-1: 0908c6d800fc1b408cb4e4adde47857288e7855a SHA-256: 77ce057e23203ee766fa9a51f8ae56d783a5b2b6e7f552c302a9d5b4e1041505
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=jurgita@profinas.lt 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_off00000bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC2 19056 bytes
SHA-256: acdf39381c9f619c8cd0e7a13b413db5df5f115d1bd440f0507143cd74b612a0
font_01_sfnt_off000032de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DE 15892 bytes
SHA-256: 99ad8546dad29e7bf686b854933af3e4868c1b561453de5b001ef0244aae4174
font_02_sfnt_off00004dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DCC 13532 bytes
SHA-256: d9b7e4694a62f4cc2dc10cb17c4d45e5943b9ae0da3fc96fd732b2b28ab45ce4