Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3fb1cbfa6d4b48…

MALICIOUS

PDF

377.9 KB Created: 2022-02-06 02:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c18b5aa9bd08e4a9b133fe0fcc6e5c68 SHA-1: da02696bc5394120e0fe71eac64957d8aaa48b30 SHA-256: 4e3fb1cbfa6d4b487e941cebe10a11c33c48a54d1adc67a7f6ad156fa90a82a7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6485

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://yubit.co.za/XSRYdR1H?utm_term=asbestos+roof+sheet+disposal PDF link annotation
    • https://evrenmentese.com/upload/ckfinder/files/27918042700.pdfIn PDF document text
    • http://njbeihang.com/uploadfile/file///2022011804552744.pdfIn PDF document text
    • http://khaskhaan.mn/uploads/userfiles/files/82049361874.pdfIn PDF document text
    • http://aerotechgroup.ru/img/outer/files/71648793178.pdfIn PDF document text
    • http://fikszo-whc.com/userfiles/files/kupuwijejalevugiluz.pdfIn PDF document text
    • http://nebodom.com/userfiles/file/podabusamanutuw.pdfIn PDF document text
    • http://thienlongadv.com/upload/files/pizisegubipofasumikufam.pdfIn PDF document text
    • http://greeninfrabd.com/assets/ckeditor/kcfinder/upload/files/wasopineg.pdfIn PDF document text
    • https://immo-macedo.lu/userfiles/files/44431976516.pdfIn PDF document text
    • https://commonwealthsportsawards.com/userfiles/file/xikaxexagiwum.pdfIn PDF document text
    • http://churchtextile.com/userfiles/file/nolupusepuke.pdfIn PDF document text
    • http://sportschoolindex.nl/images/uploads/72463676400.pdfIn PDF document text
    • http://ezclasssites.com/var/wwww/dev-ezclasssites-com/data/files/fudelo.pdfIn PDF document text
    • http://gartenmessebau.de/uploads/files/18923582928.pdfIn PDF document text
    • http://srividyaastrology.com/userfiles/file/55679547391.pdfIn PDF document text
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618ae35965e6c---duvosukopavenogak.pdfIn PDF document text
    • http://winkeleninzundert.nl/uploadimages/files/39839675692.pdfIn PDF document text
    • https://hobbypet.cz/files/file/sumupopigafozasoregumov.pdfIn PDF document text
    • https://podimercrm.com/img/files/5065154999.pdfIn PDF document text
    • https://produccion.formacion2puntocero.com/ckfinder/userfiles/files/29706045977.pdfIn PDF document text
    • https://hygradeinsulators.com/images/uploads/file/pokekusebinujaradamumezag.pdfIn PDF document text
    • http://hoadondientu-ptp.vn/images/ckeditor/files/tesutuke.pdfIn PDF document text
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1618922cd69ba4---82540357847.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/a14f9afb011262e004a2db2a658b2d27/45905779047.pdfIn PDF document text
    • https://colakcivi.com/userfiles/file/80985481593.pdfIn PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/7007d8ccd1ec5be00a16c38cfdbad795/18756966028.pdfIn PDF document text
    • http://otohondamientay.com/upload/files/netojademotivirux.pdfIn PDF document text
    • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/ji00bt99uasf742n02o11ka8ai/wofiwijukonif.pdfIn PDF document text
    • http://beautybybelief.com/admin/images/file/ratotovaxala.pdfIn PDF document text
    • http://comfortreality.sk/userfiles/file/25097469260.pdfIn PDF document text
    • http://gld-lining.com/user_img/files/kewesutenudalevutaxa.pdfIn PDF document text
    • http://candientuvibra.com/images/file/fulikegibukuzefudiz.pdfIn PDF document text
    • https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/qlehorm6sdp7q0sb2i9kpbn9s9/wobeno.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/30424827226.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c0a33ebc3bb---71138746688.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/161882794114be---87552027754.pdfIn PDF document text
    • https://hosvagyok.hu/userfiles/file/25910309144.pdfIn PDF document text
    • https://satuldelut.ro/ckfinder/userfiles/files/pusoperalewesi.pdfIn PDF document text
    • http://anhuifan.com/upload_fck/file/2021-11-27/20211127050418654353.pdfIn PDF document text
    • https://ecosolar-energy.com/piceditor/file/kebuw.pdfIn PDF document text
    • https://ribaczpeter.hu/files/file/warerukuwevunexexenufudod.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_off00057d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D25 10612 bytes
SHA-256: 2a99162472c5b198fe3f0b5065f039457b389556b16a583feffaa235c579fa5d
font_01_sfnt_off0005954b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5954B 16116 bytes
SHA-256: faf09462209440cc1f8a36964f6dcd7ef99e09aaa4cc0432dbeb1e8656ad483b
font_02_sfnt_off0005befa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEFA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9