Malicious PDF — malware analysis report

Static analysis result for SHA-256 55266e1fabe4fe63…

MALICIOUS

PDF

346.4 KB Created: 2022-03-02 02:32:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 1173684c10ccdb50b917603373a78541 SHA-1: e514112fb16eb2ff648a41c3ba4d9211fcdf6e30 SHA-256: 55266e1fabe4fe6369a9f4ed597b82aabfb4ee58fcfc508ba068cd1033514db2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5879

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://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201c4c5817b5---pagizonowuzegusosolajeno.pdf In PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc9674cbcb2---wolotujinu.pdfIn PDF document text
    • http://htrp.ru/kcfinder/upload/files/xiwevipiwogalinojis.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fad2aaa70df---xowobotusekomija.pdfIn PDF document text
    • http://vinczeandlaszlo.com/upload/6201432187.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161fdaf1599a60---fowiweruvovokodurojok.pdfIn PDF document text
    • https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/98360242486.pdfIn PDF document text
    • https://penmypoem.com/new/admin/uploadfiles/file/kebudepakutiwivezen.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203e29f3f2db---21131397054.pdfIn PDF document text
    • https://szallas-karpatalja.com/upload/93149327199.pdfIn PDF document text
    • http://www.etiquettes-adhesives-bobine.fr/kcfinder/upload/files/70863698233.pdfIn PDF document text
    • http://xn----7sba5bgeydgh6hd.xn--p1ai/upload/files/6647851566.pdfIn PDF document text
    • https://svenjakretschmer.com/ckfinder/userfiles/files/gojubuzerisi.pdfIn PDF document text
    • http://lnhaihui.com/userfiles/file/20220224150939_668322100.pdfIn PDF document text
    • http://www.lnk-creation.fr/upload/file/divaz.pdfIn PDF document text
    • http://orlickachata.cz/files/files/37094607768.pdfIn PDF document text
    • https://nordiskvillaventilation.dk/userfiles/file/86265080320.pdfIn PDF document text
    • http://kingkady.cn/uploadfile/files/dawazoxojedonesu.pdfIn PDF document text
    • http://daehnfeldt.com/userfiles/file/zipepo.pdfIn PDF document text
    • https://www.bookings.gulfstarsports.com/admin/kcfinder/upload/files/maveronuminebuzej.pdfIn PDF document text
    • https://8-hi.dataroom.tw/upload/file/74642531348.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16201858167662---3721260226.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/161ff0ef5b7f24---jebonelugito.pdfIn PDF document text
    • https://csn-alliance.com/data/files/25954165455.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/texesefesosom.pdfIn PDF document text
    • http://zima.italie-ubytovani.cz/data/file/66880948707.pdfIn PDF document text
    • https://pmrmhss.com/userfiles/file/juritifudotudamofona.pdfIn PDF document text
    • http://www.como-grup.ro/fisiere/file/woxozusepemepedibo.pdfIn PDF document text
    • http://gmixlocadora.com.br/admin/kcfinder/upload/files/37876950729.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/b7e7d85b0d0afddfe22ac55d217021a8/67824898211.pdfIn PDF document text
    • http://studioiulianella.it/userfiles/files/64393303783.pdfIn PDF document text
    • http://es88.tw/pro_pic/files/robobupef.pdfIn PDF document text
    • https://sunsetlearningcenter.com/userfiles/file/33193155173.pdfIn PDF document text
    • http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/44208260608.pdfIn PDF document text
    • https://birgatour.mn/js/ckfinder/userfiles/files/82429893881.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=biennial+update+report+singaporePDF link annotation
    • http://bagsh.itpd.mn/kcfinder/upload/files/zifenuvifo.pdfIn PDF document text
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/88732282488.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_off0004f85a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004f85a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F85A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00050f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50F7A 10720 bytes
SHA-256: 504f3cb0c94f8d15e17557bfe1cabb292dbc1c7a35001b9124e9f82fb830d4a9
font_02_sfnt_off000527f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x527F8 18632 bytes
SHA-256: c75b00e31e32a45e1fa5c6c360c6bfb419813c726ad008d4758598534c1b8245