Malicious PDF — malware analysis report

Static analysis result for SHA-256 4debb181d1fed453…

MALICIOUS

PDF

299.9 KB Created: 2022-02-28 05:59:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: ee7ce049e3e36cdefdcb6cc0d984338b SHA-1: 421140e68ec74cf64a8342bcef44532f14eb3079 SHA-256: 4debb181d1fed45308045673ca5d7e361dc5c3ebfca9c9524560e89cf96603f6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6345

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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://yoyep.co.za/XSRYdR1H?utm_term=how+to+insert+row+in+excel+sheet PDF link annotation
    • http://johnlillylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sijudaruwuwapifaze.pdfIn PDF document text
    • http://giayviettri.com/img-ftec/files/jigasupim.pdfIn PDF document text
    • http://guide-eq.com/userfiles/file/20211120080516_azh4jl.pdfIn PDF document text
    • https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/wutozofikepirajowenolowok.pdfIn PDF document text
    • http://yonezawanet.jp/units/24250/zcycom/files/lepojezifa.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16191b91e52561---93980715219.pdfIn PDF document text
    • https://lasievphov.com/admin/ckeditor/kcfinder/upload/files/12852747377.pdfIn PDF document text
    • https://anukulagrotech.com/ci/userfiles/files/54493383239.pdfIn PDF document text
    • https://acryl-bg.com/userfiles/file/rokafufaxajividojujuxun.pdfIn PDF document text
    • https://louvre.lv/res/wysiwyg/file/52559240616.pdfIn PDF document text
    • http://vbond.hk/editor_upload/file/gutexujofefupuseforulomut.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/betewenagenuxoxawuripaj.pdfIn PDF document text
    • http://poddertradingandindustries.com/userfiles/file/mulawurewenetibino.pdfIn PDF document text
    • http://psn-monolit.ru/img_file/files/512407707.pdfIn PDF document text
    • https://kolkatanagariksammelan.org/ckfinder/userfiles/files/bufagubonebafumo.pdfIn PDF document text
    • https://branchennachweis.eu/userfiles/file/dajeba.pdfIn PDF document text
    • http://shendaoguoji.com/data/attachment/file/70231550271.pdfIn PDF document text
    • https://iaetindia.com/ckfinder/userfiles/files/2657998113.pdfIn PDF document text
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161c7c99a439e3---12259985220.pdfIn PDF document text
    • https://greenways.at/userfiles/file/pobodunawumekonosivuf.pdfIn PDF document text
    • https://kotypsy.pl/ckfinder/userfiles/files/sazoludirogomuzejorudip.pdfIn PDF document text
    • http://formel1vermietung.de/userfiles/file/4512927646.pdfIn PDF document text
    • http://drukarnia-warszawa.pl/pliki/file/71955572949.pdfIn PDF document text
    • https://fullhousetourism.com/UploadFiles/file/20220210225006120.pdfIn PDF document text
    • https://ego-sofa.tw/uploads/files/202109050212186364.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16189c91a79ab1---53617789277.pdfIn PDF document text
    • http://stfrancisfrankford.com/clients/9/90/9051900d87e3fdd5bc97eff612ac54c4/File/7055736022.pdfIn PDF document text
    • https://360clothing.in/home/www360cl/public_html/uploads/images/files/zivojoxapupig.pdfIn PDF document text
    • http://arbigaz.com.tr/panel/kcfinder/upload/files/zogaxazebitupevipozatora.pdfIn PDF document text
    • http://ux02.wadhost.com/js/ckfinder/userfiles/files/20841969797.pdfIn PDF document text
    • http://www.naraihillgolf.com/admin/userfiles/file/29546099527.pdfIn PDF document text
    • https://ezastupitelstvo.sk/editor_uploads/system/files/gubamujabonunub.pdfIn PDF document text
    • https://clove7.com/userfiles/file/rariguleperuvuxeke.pdfIn PDF document text
    • http://cabini.it/userfiles/files/tawubumisisufiti.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/2aff32a6977e24514c1715291d9186e4/3613604338.pdfIn PDF document text
    • https://www.massola.com/assets/themes/sbadmin2/ckeditor/kcfinder/upload/files/porofirepobim.pdfIn PDF document text
    • http://geekladsmedia.com/admin/ckeditor/kcfinder/upload/files/narar.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 extracted file (font_00_sfnt_off00044020.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044020.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44020 10344 bytes
SHA-256: 9e0fba052bf0d5568c9e07ccbb54a238040bf3e57d2bfae93db39578be72f0fa
font_01_sfnt_off0004576a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4576A 18380 bytes
SHA-256: 152023b9f92c63670cdb4c1b52c4dc611e0bce7d018bf7e35927fb80ad39c456
font_02_sfnt_off0004885f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4885F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9