Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8acb043f900886…

MALICIOUS

PDF

410.4 KB Created: 2022-03-17 02:50:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 3190fe67bc3f2894fc45ec271e611fd8 SHA-1: 1d031e3566709a2fbef53b250c0e2f5be59288ae SHA-256: 5d8acb043f900886a4d652de0e49baa4de907e8b2f0f8a066e2fb4a28db86432
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6715

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=language+arts+worksheets+grade+3 PDF link annotation
    • https://fvcomputer.orakromania.ro/mm/file/pagiregudejebazolu.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/b1fb3fa2bb2519239205534e748058cb/98800708262.pdfIn PDF document text
    • https://dukumanis.com/contents/files/53152237830.pdfIn PDF document text
    • https://alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/16485312103.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/162187822857d7---70886359070.pdfIn PDF document text
    • https://t-groupvnxkld.com/uploads/news_file/25224753747.pdfIn PDF document text
    • http://elmakoleji.k12.tr/public/kcfinder/upload/files/wojimomitepoji.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/4f7319efd5a9fe2efe7ffc3814bfe266/47644552457.pdfIn PDF document text
    • https://jakspravnenapsa.cz/userfiles/file/jepenopaxomomo.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620570a577495---59062354220.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1621f174822f82---1436427585.pdfIn PDF document text
    • https://tktravelkorea.com/FileData/ckfinder/files/20220216_3572BB2EAE54221F.pdfIn PDF document text
    • http://www.tamtrebinhminh.com/public/files/85177778465.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/80387144030.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621fc1b2976be---tikurunorekedasodex.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1622a874f6299b---fijuzuzewoje.pdfIn PDF document text
    • https://universitecentrale.net/uploads/FCK_files/file/15621420574.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211896d1d396---31125468531.pdfIn PDF document text
    • https://asken.as/bilder/file/zarusurise.pdfIn PDF document text
    • https://syntellect.ru/Repository/file/1029205134.pdfIn PDF document text
    • https://alternatifhirdavat.com/upload/ckfinder/files/41876851083.pdfIn PDF document text
    • https://dycmc.com/DATA/upload/files/202203132050053005.pdfIn PDF document text
    • https://silky.ae/images/bulk_images/files/foxakowugupuwutazim.pdfIn PDF document text
    • http://levotst.com/uploads/files/godiwufufadanojezarorefa.pdfIn PDF document text
    • http://acrclubinversores.com/files/galeria/files/taxivolokesuvosazek.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/77e2d2a142fb10afd8a53057fb1df338/95993333934.pdfIn PDF document text
    • https://www.eurosecurimed.com/ckfinder/userfiles/files/26984894011.pdfIn PDF document text
    • http://dui-antidote.net/images/userfiles/file/mamodilemedevulasaronuja.pdfIn PDF document text
    • http://csigikes.hu/admin/fck_upload/file/kofabuj.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_off0005f80b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F80B 10796 bytes
SHA-256: 3212de2f1b7c4d2125eeb425cec60f7b6fbf8743693f162442dc718e370e45a2
font_01_sfnt_off000610ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610CA 18956 bytes
SHA-256: 134e2cce3ef30de8857673cf4d3428846533f244251b7094a73e4434d9c543e1
font_02_sfnt_off000642c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642C9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9