Malicious PDF — malware analysis report

Static analysis result for SHA-256 793f756665f42ef6…

MALICIOUS

PDF

44.5 KB Created: 2020-10-15 18:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 11dd231c5099fef988abc0c2bec5471a SHA-1: 07d40ffa3e02411f8cb7544f6373b6c1c115d0e2 SHA-256: 793f756665f42ef69f62a31e098db4b49eaf13f337ba1f0c6e6e73da5aa1e14c
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/123?keyword=computer+hardware+servicing+teaching+guide+grade+9 In PDF document text
    • https://site-1038650.mozfiles.com/files/1038650/40447053791.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/1d1f8ecc085ca.pdfIn PDF document text
    • https://sibakixode.weebly.com/uploads/1/3/2/8/132814768/4459735.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366343/normal_5f880dfc53268.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368218/normal_5f8847cea4718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368230/normal_5f87c3d4e1d3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368250/normal_5f8840c29e79c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_5f870db5a93cd.pdfIn PDF document text
    • https://site-1040298.mozfiles.com/files/1040298/dedibunidejonaxofu.pdfIn PDF document text
    • https://site-1039807.mozfiles.com/files/1039807/93790133626.pdfIn PDF document text
    • https://site-1038555.mozfiles.com/files/1038555/16773073136.pdfIn PDF document text
    • https://site-1040131.mozfiles.com/files/1040131/mojogapalawokomiwosat.pdfIn PDF document text
    • https://site-1040359.mozfiles.com/files/1040359/49938729284.pdfIn PDF document text
    • https://site-1040251.mozfiles.com/files/1040251/55654819318.pdfIn PDF document text
    • https://site-1038705.mozfiles.com/files/1038705/12278125347.pdfIn PDF document text
    • https://site-1043475.mozfiles.com/files/1043475/7436862968.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/1/0492/9975/1071/files/62569211800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5394/6782/files/unit_converter_apk_cracked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/chronic_lymphocytic_leukemia_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8757/5705/files/nugoxunuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8643/9089/files/ffa_official_dress_female.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_off00006ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBB 5668 bytes
SHA-256: 65a18e0c5c071665962ac8186f2501415d9c5989b27e2d61dd4a9849ebc77d3f
font_01_sfnt_off000081f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F7 10096 bytes
SHA-256: 9bd3f1759e07eb03465f894d32087a8237c104c2070ba3d2d17c88ddf7953624

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