Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6ed71b38b5740f…

MALICIOUS

PDF

491.6 KB Created: 2022-03-17 06:52:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: c22937fac9f693b79210600af654a1c0 SHA-1: 416ea512a041fe66a0bce607f28fbf420fc105cc SHA-256: 8f6ed71b38b5740f3f87f7d219253fcc64dcf7c5fd338b6dd82d05cc489cc264
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3788

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://avigailpekelman.com/sites/default/files/file/4511147100.pdf In PDF document text
    • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f8ee131421d---kajeloxat.pdfIn PDF document text
    • http://sreecollegeofpharmacy.com/admin/kcfinder/upload/files/1860935033.pdfIn PDF document text
    • http://lex.tj/img/file/sebufeniterituvixuliwod.pdfIn PDF document text
    • http://king-tableware.com/uploads/files/202202040518009403.pdfIn PDF document text
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16220ad61a3112---sifadevukokexawovejof.pdfIn PDF document text
    • https://www.massola.com/assets/themes/sbadmin2/ckeditor/kcfinder/upload/files/kanasijikafixigimijaxezex.pdfIn PDF document text
    • https://shinko-tw.com/UserFiles/file/pefedupedetiferoriv.pdfIn PDF document text
    • https://gotoko.com/cmsv2/upload/files/51064340887.pdfIn PDF document text
    • https://pmsp-me.com/userfiles/files/gofigelosuv.pdfIn PDF document text
    • https://www.soudeurs.com/libs/kcfinder/upload/files/naliruzapekutejag.pdfIn PDF document text
    • https://noventa.cz/media/files/file/37217712826.pdfIn PDF document text
    • http://1111.morefriendship.com/upload/files/tepebamakejojor.pdfIn PDF document text
    • http://mebelhotel.ru/userfiles/files/39851952212.pdfIn PDF document text
    • https://xn--q3cceuw0c6ab0d2ii.com/upload_file/files/futesokubupor.pdfIn PDF document text
    • http://pointerboards.com/uploads/admin/files/41920096537.pdfIn PDF document text
    • http://otvorene-srdce.sk/userfiles/file/42708275729.pdfIn PDF document text
    • http://rdasesores.gestconcursal.com/editor/ckfinder/userfiles/files/gagezisizipofa.pdfIn PDF document text
    • http://www.workbythai.com/admin/assets/images/xozimowalaxowaxogavisaze.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/162034d2664664---gefugalumamusu.pdfIn PDF document text
    • http://studioriggio.it/userfiles/files/jabixusivipawulipakaduxuf.pdfIn PDF document text
    • http://ban-mat-canh-kinh.theonejsc.com/userfiles/file/51727626085.pdfIn PDF document text
    • https://mvmdigital.gr/files/files/guwepemojobobugobarajozun.pdfIn PDF document text
    • https://sakata-mokuzai.com/db/item/uploads/files/jiwogagej.pdfIn PDF document text
    • http://szamosiszerviz.hu/feltoltott/files/54583404002.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1621aca082039d---46670638814.pdfIn PDF document text
    • http://lnyuanzong.com/uploads/files/20220306090431.pdfIn PDF document text
    • http://levotst.com/uploads/files/gesijeme.pdfIn PDF document text
    • http://kalecikliyiz.biz/panel/kcfinder/upload/files/28169095008.pdfIn PDF document text
    • https://projetovm.com/uploads/files/32280773790.pdfIn PDF document text
    • https://egyediajandekotletek.hu/mvc/userfiles/file/subiborir.pdfIn PDF document text
    • http://artvideo74.ru/upfiles/files/53972613810.pdfIn PDF document text
    • http://studiocalcinoni.com/userfiles/files/61186054371.pdfIn PDF document text
    • https://comptables-publics.fr/userfiles/file/51956653781.pdfIn PDF document text
    • https://bkdesign.ee/userfiles/file/bitosabidajoxo.pdfIn PDF document text
    • https://fiberglasssupplydepot.com/userfiles/files/kefizenarobetukolovidonu.pdfIn PDF document text
    • http://scuderieverdina.it/scuderia/userfiles/file/marevepujidokizolusete.pdfIn PDF document text
    • https://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/zenoguxuxufu.pdfIn PDF document text
    • http://sedistec.de/img/uploads/files/61550647913.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=circus+game+free++for+pcPDF link annotation
    • https://relans-nn.ru/images/docs/file/17490572954.pdfIn PDF document text
    • https://entabe.jp/upload/20220219/files/zekoxirizireramusisiju.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_off00073abe.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00073abe.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00073abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73ABE 10704 bytes
SHA-256: 10300590aa5c07ca28cb8858000e5f930b82e8bbdd72492f570fde7cb9b4fd05
font_01_sfnt_off00075363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75363 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00076a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A7F 19928 bytes
SHA-256: e9ab5b76517de2e866d8cf646a75ce7c3e3013ca8fcf0dd6d825b41a99f1b49d