Malicious PDF — malware analysis report

Static analysis result for SHA-256 55210c335134d073…

MALICIOUS

PDF

411.2 KB Created: 2022-04-25 04:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: e5b968c55026454db42944a66d222cb8 SHA-1: 1723a3c4197e889a50eafa436ae99195302e0a1c SHA-256: 55210c335134d073ceaa31e98dbf72ad2f72a43e8b4000081a339700ff26665a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7617

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://actieaanbieding.com/upload/content/files/15700108116.pdf In PDF document text
    • https://www.bilasiparacollege.org/assets/kcfinder/upload/files/mupofepu.pdfIn PDF document text
    • https://cplastik.com/data/cms/file/sejitevoborewetunexaxu.pdfIn PDF document text
    • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/vubugebigexi.pdfIn PDF document text
    • https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/zidofuverolefibagaxojij.pdfIn PDF document text
    • https://yiaiwang.com/upload/files/88728404733.pdfIn PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/26115781ea768f7f5b6114c35dd49f30/fiwak.pdfIn PDF document text
    • http://teleserviciomalaga.com/ckfinder/userfiles/files/11562486916.pdfIn PDF document text
    • https://eprobatdz.com/ckfinder/userfiles/files/35510052807.pdfIn PDF document text
    • http://tourtraveltalk.com/app/webroot/js/kcfinder/upload/files/dokaxaxigubekafudowafe.pdfIn PDF document text
    • http://diar.pkauto.sk/images/_file/93901912087.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/bevuvezasinunezaxu.pdfIn PDF document text
    • http://vocal.bpv.su/content/files/files/givoxo.pdfIn PDF document text
    • http://sashtraayurveda.com/ckfinder/userfiles/files/35041553868.pdfIn PDF document text
    • http://biosurfest.com/userfiles/files/tawupenifilixop.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623ee34377d7e---30226626324.pdfIn PDF document text
    • http://avandcie-energy.com/ckfinder/userfiles/files/tetoxazo.pdfIn PDF document text
    • https://generalaudit.pl/eurostyl/photos/file/lelesodapoworuxadavemabi.pdfIn PDF document text
    • http://remont-elektro.eu/archiv/file/dedelozevevovumixulaxowa.pdfIn PDF document text
    • http://crystaltrade.hu/data/file/vavadekovanefi.pdfIn PDF document text
    • https://voskovefiguriny.cz/kcfinder/upload/files/34985560453.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1621a2ff6f325d---gelexinebesarudaxurume.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16205dd7df2167---79630138222.pdfIn PDF document text
    • http://ufnk.fr/app/webroot/files/file/xogeguvezesudalo.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=neumonia+adultos+pdfPDF link annotation
    • https://damsindia.org/admin/uploads/file/diwelexelapogedimezizakam.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_off0005fb04.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005fb04.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005fb04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB04 20736 bytes
SHA-256: 7b02e4cf65df90f1f9c1b684658f55a4b2dbbd4f02e3e61466d13ce39b480e03
font_01_sfnt_off00062ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CE4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000644fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644FB 10636 bytes
SHA-256: 3102e786962dc60d8410862d2d7b49d88a869c2ec91f58cd494672b8c30b7bc1