Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07b13d3f0ac2023…

MALICIOUS

PDF

25.5 KB First seen: 2026-05-29
MD5: 5ba540df4faa28c1e871671b3824aae1 SHA-1: 3fe3dc172f2230c309e05ec8bdc85a7fe604c27d SHA-256: c07b13d3f0ac2023a988546d5da051d7f1f06513498528d0455d242d4ca7b186
102 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0072

Heuristics 3

  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • 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.
  • 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=lwillard@jaguarlandrover.com In PDF document text
    • 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_off00000bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD1 19048 bytes
SHA-256: 044175514fe5fcf89e5fc348d20404d92fbf31b0bae61085c57b8f148d0bc57c
font_01_sfnt_off000032e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E2 15892 bytes
SHA-256: 99ad8546dad29e7bf686b854933af3e4868c1b561453de5b001ef0244aae4174
font_02_sfnt_off00004dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD0 13532 bytes
SHA-256: d9b7e4694a62f4cc2dc10cb17c4d45e5943b9ae0da3fc96fd732b2b28ab45ce4