Malicious PDF — malware analysis report

Static analysis result for SHA-256 7935091943d76f8e…

MALICIOUS

PDF

71.6 KB Created: 2021-12-03 17:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 68c3c581ca151241604607d4ffc28a8d SHA-1: 5f73baa653bc671933c6beb40acd342a981b949d SHA-256: 7935091943d76f8e2abb619173f4a26a57e3b3c710685fabe7df0da1ead77f3f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://oniceh.ru/uplcv?utm_term=bruce+lee+fighting+method+book+free PDF link annotation
    • https://keongracun.org/contents/files/sobujinirexo.pdfIn PDF document text
    • https://tbsva.org/Upload/files/20210927014716.pdfIn PDF document text
    • http://peneleos.pl/userfiles/file/peguleziserim.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/161525f5f223c5---fonij.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/7b11cb4d86f6cf70a0be5ec831a7ce63/pogefexufokugi.pdfIn PDF document text
    • http://somersetcountybar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jubovobifajoseke.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/kafalivefor.pdfIn PDF document text
    • http://okwmd.com/upload/fckeditor/file/85088906016.pdfIn PDF document text
    • http://sartor.ru/upload/files/rokoturuvupi.pdfIn PDF document text
    • http://rasciindia.com/firetech/ckupload/files/57834129327.pdfIn PDF document text
    • http://simonhoirup.dk/userfiles/file/98765219912.pdfIn PDF document text
    • http://sochi-polyana.com/ckfinder/userfiles/files/59314014829.pdfIn PDF document text
    • https://guanlai.tw/uploads/files/202109131925282074.pdfIn PDF document text
    • http://oryginalnedekoracje.pl/userfiles/file/vofodanonizomokuta.pdfIn PDF document text
    • http://ez-surveying.com/htdocs/cljr/data/files/30242748441.pdfIn PDF document text
    • http://ezicms.antifftech.com/uploadfile/file///2021110822352856.pdfIn PDF document text
    • https://condominiovillage.com/userfiles/file/tituleliniduwazapin.pdfIn PDF document text
    • http://biolabsrl.org/userfiles/files/bepurafusized.pdfIn PDF document text
    • http://gelikonline.ru/content/Files/89142656656.pdfIn PDF document text
    • http://ashioke.com/images/library/File/37973571553.pdfIn PDF document text
    • http://brilspa.ro/userfiles/file///nasijixaniga.pdfIn PDF document text
    • http://benetworkingpro.com/ckfinder/userfiles/files/vuxup.pdfIn PDF document text
    • http://alphasigmaoverseas.com/userfiles/file/91575539779.pdfIn PDF document text
    • http://chugguwang.com/files/fckeditor/file/fimuvirugidewigizali.pdfIn PDF document text
    • http://www.thaiticketmajor.com/static/imgUpload/files/nikukukixepitenavekejodu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB424 10976 bytes
SHA-256: cf599e287e3671adc45c01c20e76bf8163dbfc3f5eecc39fdf7946df548a401c
font_01_sfnt_off0000cd32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD32 17248 bytes
SHA-256: d0a16e0f86f3920b9ce314ab521259faedde4c6c38d5c2881b87e2e5893f91a3
font_02_sfnt_off0000fa63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA63 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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