Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af067859b14e1fd…

MALICIOUS

PDF

51.9 KB Created: 2020-10-18 09:56:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: b73db30fb260b5c58641f14a90f36770 SHA-1: a57a63a8cb023f43c07060c14c822fba7877d902 SHA-256: 4af067859b14e1fdc32071ec14eec9c0a4bbae904582f7f0c8b9358a1710e1c9
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.club/123?keyword=microsoft+access+full+tutorial+pdf In PDF document text
    • https://bilewazivabo.weebly.com/uploads/1/3/2/8/132816117/bewikidawiwejid-jivojivadije-bawomutebidoga-jidoxakiza.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/sijuwoxujupid.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/7645977.pdfIn PDF document text
    • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/a7850825515b5.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/topexukiguf-nulakekez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379234/normal_5f8ba105a4867.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367313/normal_5f875ca4c60a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365570/normal_5f87505b55b42.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/364ba1b2-d2b1-48b1-b203-df1f5da614eb/abundamiento_de_materiales.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a96cccd-6bca-46fc-b41a-7e48ce175323/83275006586.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/295a312a-851d-40fb-ad57-90f1132839e7/41604985654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/447a276f-2233-417b-9b39-ceda7d1471a3/desevesotikatefesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/705815c1-9079-41a9-ac24-5af15a9e35a3/50583922213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57fb146e-9efe-4e8b-9ca1-aef5784602dd/49481110851.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cef1e009-6663-4f8c-82ad-9088c3b2e2d1/10793319139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/young_jeezy_the_recession_tracklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9346/8347/files/60704459813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6946/4727/files/calories_in_fried_potatoes_in_canola_oil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/5731/8561/files/tallest_mountains_in_oregon_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9063/9000/files/kvalitativn_vzkum_jan_hendl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6546/6270/files/swtor_armor_sets_jedi_knight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2873/2830/files/human_life_cycle_definition.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_off00008de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE3 5156 bytes
SHA-256: 2bebb9736360a2aa0e176112800bfc350676fb6c56884dab64ea9f5d4fdffb14
font_01_sfnt_off00009f74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F74 10088 bytes
SHA-256: ea96cdf39dc11ec524c7ec3b9a7cbc155728a433fce853c87599e371dd4ac52e

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