Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3945ad7216ef3e…

MALICIOUS

PDF

54.5 KB Created: 2020-10-24 23:05:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: df9012057b5dbdd96ae2e8f898c15cc7 SHA-1: 24c144c47a49ff153afc41b4dcfec97a95eadf00 SHA-256: 4e3945ad7216ef3e4248fb0e303d8a958633bf4a08eb58990be77cd4279502eb
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=paradigma%20positivista%20autores%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f8aca4057ca9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367650/normal_5f875fc94ca72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408996/normal_5f945fc3b8e37.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/debizikirapanas.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/bugujo.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/tepuput_goludogonok_molul_gekagur.pdfIn PDF document text
    • https://sewuvemap.weebly.com/uploads/1/3/4/3/134377394/sukamanozaban.pdfIn PDF document text
    • https://pisanofinupu.weebly.com/uploads/1/3/1/4/131437881/9864361.pdfIn PDF document text
    • https://bakukumi.weebly.com/uploads/1/3/4/4/134437371/9613595.pdfIn PDF document text
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/saguwafofix_pogafaxu.pdfIn PDF document text
    • https://zewuxufasebi.weebly.com/uploads/1/3/4/3/134320084/bopewepidanumovuwi.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/1/0497/8199/7717/files/livro_gestalt_terapia_explicada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5865/0009/files/78594605434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8599/7241/files/93675446527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7883/9191/files/damovitik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2075514e-a801-4966-8029-621fa7021b2d/83404790130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38feb353-bbd2-4524-8c28-d271c0aac6f5/18867915453.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bee3d5dc-79aa-475c-9448-797e2a7b18c5/73882210852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cdf7b47-952f-4164-ae78-3860726e83ac/download_commando_behind_enmy_lines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed969b81-e274-4bc8-bf6b-cbdde48f197f/samurai_champloo_battle_cry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb9fd405-6799-4ff1-a8ac-adbb31f97649/dukenexeduzerofivegubago.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_off00009591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9591 5388 bytes
SHA-256: 301b468b4657c95fe62abb85a141d977a4f9e22f839784406995bf1c74f3a709
font_01_sfnt_off0000a7dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7DC 11428 bytes
SHA-256: 5c1264d2afbec3a50296ab0b2a18d92818c4f09c01586e81eb1161f23c26fa70