Malicious PDF — malware analysis report

Static analysis result for SHA-256 af235bbb1679e3af…

MALICIOUS

PDF

322.9 KB Created: 2022-02-07 05:52:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 73a5ecc6d1ff9fc3a35008020c725c01 SHA-1: 2fdb429cf56a433b43b9ccf037cc0f58774d1b8d SHA-256: af235bbb1679e3af98a6f73fff6ba4eeb04ca2ea5f60cc5da0567c6e415363da
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7428

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://yubit.co.za/XSRYdR1H?utm_term=axel+springer+annual+report+2009 PDF link annotation
    • http://parquet-cortes.fr/data/Files/32652203584.pdfIn PDF document text
    • https://pjkconstruction.ca/images/file/67132044420.pdfIn PDF document text
    • https://mangonebike.com/uploads/file/94803382242.pdfIn PDF document text
    • https://ddtoyz.com/ckfinder/userfiles/files/galeg.pdfIn PDF document text
    • http://affichage-comevents.fr/kcfinder/upload/files/17743048428.pdfIn PDF document text
    • http://metzgerei-bischof.de/userfiles/file/45659284227.pdfIn PDF document text
    • http://estetycznastomatologia.pl/file/files/lekepa.pdfIn PDF document text
    • https://newsale.linyn.mobi/upload/ckeditor/pages/files/61241799609.pdfIn PDF document text
    • https://stephankeppel.com/userfiles/file/42538095062.pdfIn PDF document text
    • http://coral-travel66.ru/admin/ckfinder/userfiles/files/sudinole.pdfIn PDF document text
    • http://livilgirls.com/files/9809818041.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/16842787942.pdfIn PDF document text
    • http://polloricowings.com/uploads/files/nadapidamojokezivima.pdfIn PDF document text
    • http://jobsandhi.com/uploaded_files/userfiles/files/39854010367.pdfIn PDF document text
    • http://stapi.org/assets/kcfinder/upload/files/10731268281.pdfIn PDF document text
    • http://dgjinhak.kr/DATA/upload/files/202109200718022869.pdfIn PDF document text
    • http://rc-modeller.se/images/file///lupezuwulepusagur.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161e1a868545ad---sozago.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160fc27034004b---maxetasulewiwidopatanasex.pdfIn PDF document text
    • http://tplustech.com/images/ckeditor/files/gimonim.pdfIn PDF document text
    • http://iseveranscopy.com/upload/editor/file/ligoro.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618862d7a0add---71992350906.pdfIn PDF document text
    • https://pikhospital.com/ck_uploads/uploads/files/dasowibozikegabu.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16103afa0212e7---jemunokezokekafefaguboko.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047cb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47CB5 24156 bytes
SHA-256: 15b498489b3a49842b6cfc0a5f0d543bf3e5ca500f3896f977b3da30942f2d64
font_01_sfnt_off0004b4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4DE 16332 bytes
SHA-256: 4b7f8664ed3f03f89241a2f8224d1d55b0645a2f6cbe59ead764381fdff3f974
font_02_sfnt_off0004cb13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CB13 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0004e233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E233 11020 bytes
SHA-256: d4425ba81d0f5d2a5d077bb9d19bf156e0cdf8d74d62fed3399471ebad80681c