Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3c7d71789f6843…

MALICIOUS

PDF

48.8 KB Created: 2020-10-27 13:18:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: c41fbb2ffe0d76dde0586dccb101abcd SHA-1: 3f4d67716891b065f535d51bd78360feade6f5eb SHA-256: 0d3c7d71789f68438f2713f8df83e1787a8edc63e7d3f2b710d7217e8282371f
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://ggtraff.ru/wb?keyword=admission%20form%20pdf%20format In PDF document text
    • https://sopopubepomexak.weebly.com/uploads/1/3/4/2/134265445/325191.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/3e0ceeff9a.pdfIn PDF document text
    • https://zuxizakubapepo.weebly.com/uploads/1/3/4/3/134317428/furazumom-zeweputoxowif-wukesorox.pdfIn PDF document text
    • https://tufelovewojamex.weebly.com/uploads/1/3/4/3/134331554/wosopewukip.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/nabelebefawedamal.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/85ea9.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/muluk.pdfIn PDF document text
    • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/gubapogufemiwuxerozo.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/db248a2f-0d88-470b-9a6d-098d167a1fe3/xugolodezaxomadusi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbefff55-4a9d-465d-be1c-dca6f2c66907/1565548780.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caa54ecd-b22f-47c3-924b-c2d9984ff2a5/regular_show_muscle_man_my_mom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbc6cb0e-9291-4e53-b670-83a0a359eca5/monejukuxux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/257cb82f-9369-4bdf-8988-53a68c742124/26446402865.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/269b89b0-16dd-4279-9fb3-95b7cabb9bfc/windows_10_how_to_hibernate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc0a5ce3-95d1-45b6-bf83-379982b8bf9f/firegiramive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c249a51-d374-4afe-8982-06a266bc5cf7/5094994388.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec96b09-ec28-4647-8e61-147a4a5596f9/miginovenomibefibode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5321/9479/files/18054442033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3449/9493/files/jubun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/64821973427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2703/files/my_hero_academia_season_3_episode_14_simon_heloise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1014/3902/files/31892488686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7481/8726/files/turbo_pascal_book.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_off000082f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F8 5144 bytes
SHA-256: e8c36d74c1e38bd95ef7c9e88512addb00ee5a0cd9543570659a5ef2aad022f3
font_01_sfnt_off00009457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9457 9900 bytes
SHA-256: b7319e34edb3a9a1967d785765981e41d129a70919c48d7aa9016842c07399ef

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