Malicious PDF — malware analysis report

Static analysis result for SHA-256 941abc97a9fe5abf…

MALICIOUS

PDF

38.7 KB Created: 2020-10-27 11:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 7888e85dd1f91f5ab689cc239370cfc4 SHA-1: 02da69dd9b2fb5f0b782109cf4822140d0c55de6 SHA-256: 941abc97a9fe5abf50207265ed109b806799a8aacb3a27901630b187bd6fa90f
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://cctraff.ru/strik?keyword=index+of+refraction+and+snell%2527s+law+worksheet+answers In PDF document text
    • https://gepobuxew.weebly.com/uploads/1/3/1/0/131070920/zetepad.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/72ab990ecb722.pdfIn PDF document text
    • https://welavofewefose.weebly.com/uploads/1/3/0/8/130813025/bazepajepofina-zenikogoso-vewidixefodaga.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/be11a7b1b9.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/9503004.pdfIn PDF document text
    • https://tolixolosunep.weebly.com/uploads/1/3/4/4/134403343/2740918.pdfIn PDF document text
    • https://nubawobadeg.weebly.com/uploads/1/3/4/1/134131997/7a32e83e.pdfIn PDF document text
    • https://laxuruvu.weebly.com/uploads/1/3/1/4/131482832/xawokogodeduxugowudi.pdfIn PDF document text
    • https://sutogibigasoju.weebly.com/uploads/1/3/1/0/131070189/kepejurewon_sipitevuj_jazisu.pdfIn PDF document text
    • https://pisanofinupu.weebly.com/uploads/1/3/1/4/131437881/3536370.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/f7a17.pdfIn PDF document text
    • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/b08364456f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387408/normal_5f8ce67774318.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381090/normal_5f8c0070c759b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368998/normal_5f8811359d45e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408987/normal_5f961ce8a3505.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/1/0495/2876/6630/files/electron_transport_chain_cellular_respiration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/1586/0134/files/77790345796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5799/5672/files/toefl_primary_step_1_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/4268/8154/files/madeas_family_reunion_full_movie_for_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fecb3299-307e-496b-ba12-5e2f34f11545/jetozovil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3fd0823-e0a0-46b4-a0d7-d5ef1ad8294f/administrative_law_notes_in_hind.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_off0000579a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579A 5304 bytes
SHA-256: 29f09286c511771110ab056d58fad480de340723faf68b582cb49cd53a1c8202
font_01_sfnt_off000069bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BC 10452 bytes
SHA-256: 68a13e5ebfb030cc56a14f4185df2bccaf8c8f3f984200c158b65b0a3333c371

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