Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ba86146ac548f…

MALICIOUS

PDF

58.7 KB Created: 2020-10-01 02:27:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 8fd16ebf62455a4bd8a9f937188f366e SHA-1: f5c7c3a4f1ff26d1d66f7747cd77364a44823e57 SHA-256: 478ba86146ac548f28ebd687c022f6ec6bb6eef0b3b452b848e4fea7b8fd5d08
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ggtraff.ru/strik?keyword=school+building+layout+floor+plans+pdf In PDF document text
    • https://site-1040006.mozfiles.com/files/1040006/76008507536.pdfIn PDF document text
    • https://site-1037235.mozfiles.com/files/1037235/99585061190.pdfIn PDF document text
    • https://site-1038478.mozfiles.com/files/1038478/kozegalemetevarija.pdfIn PDF document text
    • https://site-1039413.mozfiles.com/files/1039413/19991844222.pdfIn PDF document text
    • https://site-1037276.mozfiles.com/files/1037276/89095356796.pdfIn PDF document text
    • https://site-1039991.mozfiles.com/files/1039991/65447093758.pdfIn PDF document text
    • https://site-1036639.mozfiles.com/files/1036639/3574657527.pdfIn PDF document text
    • https://site-1037869.mozfiles.com/files/1037869/11932719590.pdfIn PDF document text
    • https://site-1037237.mozfiles.com/files/1037237/45423817064.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8294/1351/files/gravitational_field_strength_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0499/1387/files/77559611833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7105/7319/files/seriously_cinderella_so_annoying.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/158aeb2e-35f8-4b61-99f5-54c018e56721/vatitivasupe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19133e68-3fac-469e-85e5-c89747768d3e/37919214738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5be1264e-3747-4836-90ba-cb15ae069a23/tojagelilarideleraso.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA758 5764 bytes
SHA-256: eb22b8e064c447500b31d99b0ea2acbe3ead5de50d87bc469d29b72ba57ae332
font_01_sfnt_off0000baf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAF5 10200 bytes
SHA-256: 08898827e6a54b1756601cc5a509a27b50e71914affc22fee71d233d1e4e76d7

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