Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdb072003329656d…

MALICIOUS

PDF

80.9 KB Created: 2021-03-25 16:41:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0ebf8c19db2b28302c166291e19575ce SHA-1: 2cba0ad87e6dc9c22e36854cb8c6e80492eaeed5 SHA-256: cdb072003329656d2b68e4969d70e43435cc48dc059b5a2724c5fc3eb936eac9
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://vilenefex.ru/strik?utm_term=is+grief+counseling+free PDF link annotation
    • http://kexedeziferu.sportsontheweb.net/calcitonina_como_marcador_tumoral.pdfIn PDF document text
    • http://rawitotizoxuk.scienceontheweb.net/70398060939.pdfIn PDF document text
    • http://domastmsk.space/30573970459my9ib.pdfIn PDF document text
    • http://bopugafuwu.scienceontheweb.net/diferencias_del_modo_de_produccion_capitalista_y_socialista.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/ihhiMjj/modern_house_map.pdfIn PDF document text
    • http://gogogoinst.xyz/dunkin_donuts_signature_latte_caffeineqp0y4.pdfIn PDF document text
    • http://snegny.com/91954530123m4xvl.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/hcichgd/robiwupuvumijiwika.pdfIn PDF document text
    • http://optamorem.com/matofenutesogokagoliphlun2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d525ee04-2a40-494f-8ba9-fee52f7b18ee.filesusr.com/ugd/8b8e24_d84dca8ea48641c1b1e2aaeb400265da.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/35884c0c-db32-4f73-a759-4ff35ed2441a/nepowagomi.pdfIn PDF document text
    • https://74bb8966-1fc2-43cb-a641-24c20f380d28.filesusr.com/ugd/84c7b5_db845d8755dc43d99145ba35dc1b50f8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/66c84fe8-d5e5-40b1-b2ef-07ecc86c68b0/84292791551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06c3113e-7890-4fdd-ab44-7cd0c18a73d1/classifying_triangles_according_to_sides_and_angles_worksheet.pdfIn PDF document text
    • https://fb9345b8-40be-4608-a8ff-9c5427dba92f.filesusr.com/ugd/98d639_26e0bfcfa4c54b119b5a587a33b6f630.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a56e1b65-13f0-4a8a-b4c3-857a36576846/3d_origami_book_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/bexenevesenomojar.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/79354102436.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/brotherhood_punjabi_song_status.pdfIn PDF document text
    • https://937a8a2d-b41a-4163-aff8-eda6db263557.filesusr.com/ugd/21e6f2_fb2f3d259c0b44c181a33fec47be9fa8.pdf?index=trueIn PDF document text
    • http://wowutuzineko.myartsonline.com/baba_yetu_choir_score.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/onn_wireless_mouse_ona11ho087_manual.pdfIn PDF document text
    • http://bujekotu.atwebpages.com/25236432925.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f4a25c1-6456-4cba-9c49-9ac1eb584295/zezejeloguw.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_off0000ff40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF40 4776 bytes
SHA-256: 10d22d1fda20d7cc1268697f9669d6bd087a66394c77a59ec3faa756854fea8a
font_01_sfnt_off00010f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F99 11400 bytes
SHA-256: c9ef3f2142d4573ea7da3d55fd2b8e53d217d04a78f0dc20014dd1ca0fe87563

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