Malicious PDF — malware analysis report

Static analysis result for SHA-256 4255a49a4dab919f…

MALICIOUS

PDF

197.5 KB Created: 2022-02-06 11:30:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 42e8e5ceb2dbebfb6b42db0d80308fec SHA-1: 4e6970888c3732dc42e1146142b9539f13810768 SHA-256: 4255a49a4dab919fba5310f42abfc7b0291479e99ea859434790a5f6393aab21
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7572

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=acceleration+vs+time+graph+uniform+motion PDF link annotation
    • https://nepalonetours.com/userfiles/files/43116434474.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/salosoxege.pdfIn PDF document text
    • http://ekvatorbl.com/userfiles/file/85149864852.pdfIn PDF document text
    • http://batiment-tunisie.com/userfiles/file/54867488839.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2915fc158b---76517212777.pdfIn PDF document text
    • http://kyea.org/imageuploads/bumilufi.pdfIn PDF document text
    • http://piazzademarini3ge.com/userfiles/files/27186634277.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/161b05d1b2e4d6---75359848293.pdfIn PDF document text
    • http://votejoedestefano.com/editorData/file/77175686666.pdfIn PDF document text
    • https://gerastar.com/userfiles/file/71632100391.pdfIn PDF document text
    • http://aumnat2car.com/ckfinder/core/connector/php/upload/files/bifamupamodadu.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161872f9c58d30---7497345541.pdfIn PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161b0e511af855---3070608258.pdfIn PDF document text
    • http://adveotec.com/img/file/vedege.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160f27ad5dab7b---xawefapudowuvanatujig.pdfIn PDF document text
    • https://dialogueinpraxis.net/files/docs/rowukamodorove.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1617960ff9b9bc---75824617387.pdfIn PDF document text
    • http://haqwali.biz/files/file/93699663656.pdfIn PDF document text
    • http://appextskihjthj.handysociality.com/upload/files/xolexalokaduverijuxako.pdfIn PDF document text
    • http://www.flexformule.nl/kcfinder/upload/files/72262868881.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/02k7ov764gh6a754hb977houn8/vabirituwuwobe.pdfIn PDF document text
    • http://hometextiles-consultant.com/ckfinder/userfiles/files/xodogigororibuk.pdfIn PDF document text
    • http://canoeing.by/pics/files/soludivozalubitu.pdfIn PDF document text
    • https://premiersuli.hu/files/files/35035739253.pdfIn PDF document text
    • https://iva-vietnam.com/userfiles/file/fojozudoxajuz.pdfIn PDF document text
    • https://franchisefarm.franchiseharbor.com/files/files/notiredujikipoborivat.pdfIn PDF document text
    • http://kastely-vacduka.hu/fileok/file/niresopumerul.pdfIn PDF document text
    • https://tybistanbul.org/resimler/files/74185822221.pdfIn PDF document text
    • https://pointvirgule.ca/upload/editor/file/56965524047.pdfIn PDF document text
    • http://sochi-polyana.com/ckfinder/userfiles/files/momosonerijuwoxoj.pdfIn PDF document text
    • https://stpeterscbs.ca/ckfinder/userfiles/files/nagon.pdfIn PDF document text
    • http://mega-treid.com/userfiles/files/59937734742.pdfIn PDF document text
    • http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/79114676038.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618f7390cae0f---tinapod.pdfIn PDF document text
    • https://grup-insaat.com/userfiles/file/88636423751.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_off0002a886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A886 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002bfa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFA6 11076 bytes
SHA-256: d4d53c670e2d11ece7d1ec1fd638d51e0da96f6fb26d844e0133d80759406a3a
font_02_sfnt_off0002d94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D94A 17140 bytes
SHA-256: d4f7b6788ecccc89e4260759af9ba92946dd7bf4ddfbebf7eb8f7f7f90b8d0f1