Malicious PDF — malware analysis report

Static analysis result for SHA-256 94956a097caebe3b…

MALICIOUS

PDF

36.7 KB Created: 2020-09-30 20:44:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-10
MD5: 4cdacc0d8d244fd31c272da839edfd88 SHA-1: 54984a7a9f8b05d69e251dff9d43e079f39a2b6e SHA-256: 94956a097caebe3b4b7bcb3b36bb3a3698ddf72e822b1e221b9ea91e6acb5447
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=cambridge+primary+mathematics+stage+4+pdf In PDF document text
    • https://site-1037169.mozfiles.com/files/1037169/vezejitironati.pdfIn PDF document text
    • https://site-1037882.mozfiles.com/files/1037882/wowemitekozewenukogi.pdfIn PDF document text
    • https://site-1038908.mozfiles.com/files/1038908/vonodegawipipudetuwiki.pdfIn PDF document text
    • https://site-1036627.mozfiles.com/files/1036627/51701391892.pdfIn PDF document text
    • https://site-1037253.mozfiles.com/files/1037253/wibejumakizazugigelepexiv.pdfIn PDF document text
    • https://site-1036635.mozfiles.com/files/1036635/gatawo.pdfIn PDF document text
    • https://site-1037884.mozfiles.com/files/1037884/maxapatezivuvixetapexup.pdfIn PDF document text
    • https://site-1037196.mozfiles.com/files/1037196/ruvinumi.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000462c.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000462c.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000077a3.bin)
    • https://cdn.shopify.com/s/files/1/0434/5298/9607/files/40836273293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/lifulezijejowamameripufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/juzopovomew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5591/files/ambari_kannada_film_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/all_full_forms_of_computer_subject.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57863cc5-bf98-4438-b4dc-b229d79f870b/fapopokukalopatag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1416374e-84e9-4cc7-aacb-ca63014a7b25/6783422511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7b0bdb6-2599-45ba-94cf-7aa81ba73986/mobolarimaf.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 extracted file (font_00_sfnt_off0000462c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000462c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x462C 5460 bytes
SHA-256: 1c1041af82f24c88cf2b6e11a3712804fd9ed519c767e3ce17ad41f78170d768
font_01_sfnt_off000058d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58D3 9020 bytes
SHA-256: 555ed76f27e53cac4f6a64514c9b941bf495cc36b16e335f5f5b5d098e211d66
font_02_sfnt_off000077a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3