Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fc4a945a7abe96…

MALICIOUS

PDF

256.3 KB Created: 2022-03-07 20:11:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 692fccdd6358563b6620f57eaf75419b SHA-1: 356557f88e8f987c949ffc4cb9a5e1b1850a5cce SHA-256: 98fc4a945a7abe9670a7a32e838b837d290a11e6cff06d65ada88724279dea7b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4595

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://colod.co.za/XSRYdR1H?utm_term=dolphin+browser+android+2.+3.+5 PDF link annotation
    • http://piwcnorthhouston.org/admin/ckeditor/kcfinder/upload/files/53722967138.pdfIn PDF document text
    • https://www.vg42.ru/public/templates/kcfinder/upload/files/nerizarigekenekes.pdfIn PDF document text
    • http://www.kirmatas.org.tr/kcfinder/upload/files/jofes.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/ligezarajirimos.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/6o8ih9a8p806vmdalkjm92kpa1/20960761112.pdfIn PDF document text
    • https://christschoolblr.in/userfiles/file/60304421580.pdfIn PDF document text
    • http://idcla.net/upload/files/21919965516.pdfIn PDF document text
    • http://charmingcurls.se/upload/file/zagirudaxinajiranotidanu.pdfIn PDF document text
    • http://immodraft.eu/images/architekten_agentur_images_/file/65447556186.pdfIn PDF document text
    • http://nabisori.com/userfiles/file/58865715279.pdfIn PDF document text
    • http://www.gulbaharsigorta.com/contentData/file/vikixedexaxisilidaxinuj.pdfIn PDF document text
    • http://strihaci.cz/userfiles/file/fiwitubejutotise.pdfIn PDF document text
    • https://exxel.cz/kcfinder/upload/files/xokivuvokoru.pdfIn PDF document text
    • http://ekorob.pl/userfiles/file/lejufabozow.pdfIn PDF document text
    • http://phuctuong.vn/images/files/dobawux.pdfIn PDF document text
    • http://kvarkeno56.ru/userfiles/file/napixupivuf.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161fb6d6a7de9a---22464213477.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/4034518294.pdfIn PDF document text
    • http://hotelborgodeipoeti.com/userfiles/files/50416437652.pdfIn PDF document text
    • http://omorits.jp/uploads/files/bolepefoguzexan.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/162004bc0544a5---nelesoxubutasi.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/35303423187.pdfIn PDF document text
    • http://tms-technology.com/ckfinder/userfiles/files/vupurabuju.pdfIn PDF document text
    • https://bustotoronto.com/userfiles/file/lewoteda.pdfIn PDF document text
    • https://keiba-like.biz/js/ckfinder/userfiles/files/devunemimopimabufexe.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/78089028502.pdfIn PDF document text
    • http://thermcom.cz/userfiles/file/12621310156.pdfIn PDF document text
    • http://fotosvatba.net/userfiles/file/94508300605.pdfIn PDF document text
    • http://ares-gunshop.sk/admin/ckeditor/kcfinder/upload/files/dabejegeluliramosilorerol.pdfIn PDF document text
    • http://iccarrentals.com/files/file/4082389950.pdfIn PDF document text
    • http://maybaobidinhdinh.com/upload/files/95394024368.pdfIn PDF document text
    • https://associazionemusicaviva.it/uploads/file/33580362610.pdfIn PDF document text
    • http://sushrutproctology.org/ckfinder/userfiles/files/55184253253.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/4298b22ec058c761abb78eef61427af1/bubidegukugimoneferanobu.pdfIn PDF document text
    • http://ge-mak.com/files/fefowevudeboxukuk.pdfIn PDF document text
    • http://diepdoanhmetals.com/media/ftp/file/3199365592.pdfIn PDF document text
    • http://www.anpecv.es/gestor/ckeditor/kcfinder/images/files/xapubezufafozotonakebibi.pdfIn PDF document text
    • http://alhegazgroup.com/userfiles/file/xobagapad.pdfIn PDF document text
    • https://cortado.funeralinnovations.com/copilots/upload/files/mukuxelenobutowiwat.pdfIn PDF document text
    • https://ilonew.tasksplan.com/userfiles/files/pegasemalap.pdfIn PDF document text
    • http://sadbaindia.org/admin/kcfinder/upload/files/78534767987.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/tl8iatg23qlhsq131l046kqoj3/wuzabomonozawesuwaduz.pdfIn PDF document text
    • http://richmediahouse.com/admin/uploads/file/1031823844.pdfIn PDF document text
    • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/7b3e07f0ee9a1cd804112faabb1f0cc5/gipunokajo.pdfIn PDF document text
    • http://terrygallery.com/fckeditor/_upload/file/49185855539.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/95918259515.pdfIn PDF document text
    • https://ln80.cn/filespath/files/20220211220359.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
    +6 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000370ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x370BA 21160 bytes
SHA-256: 74c10e92b61c0fa1a22f71e8f53fcd5dfbab7fd94a1bd69d3ea5a27a441b49aa
font_01_sfnt_off0003a8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A8F4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003c020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C020 11112 bytes
SHA-256: c3e277a3e0a74fa3171b6badce4523be7fd0e7772f9d7ef9e45292040c39e5f1
font_03_sfnt_off0003d9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D9D5 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6