Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f273e2f26ccfa9…

MALICIOUS

PDF

508.0 KB Created: 2022-03-24 22:16:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: c5c0eb2cd005a93a8a7490a6ad5ccf9c SHA-1: e69883dbffb2ca6ffba4da5783b0056cef2304a0 SHA-256: 98f273e2f26ccfa95477bfbee8022f1a3c1c1cce66162c799d722648839bdbfe
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4622

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 http://kabinet.puzat.ru/marafon/uploads/files/liwelevovumeji.pdf In PDF document text
    • http://giovanninociti.com/userfiles/files/tukuxama.pdfIn PDF document text
    • https://nitdgp.ac.in/uploads/userfiles/files/25740527728.pdfIn PDF document text
    • http://mariondhuique-mayer.com/data/file/vulomalupedanizexer.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/8be00ef742f9812cf6a7bc66fa3fe9bc/razifanoxoguzuzal.pdfIn PDF document text
    • http://huucodatlanh.com/userfiles/file/logararitakafatalelok.pdfIn PDF document text
    • http://globalroomplus.com/bot/ckfinder/uf/files/xomulisup.pdfIn PDF document text
    • https://matharu.ae/userfiles/file/rizuvipotoxe.pdfIn PDF document text
    • https://ripedesign.com/app/webroot/files/fckeditor/file/dikasesugegopevufevafido.pdfIn PDF document text
    • http://sivam.pl/files/file/wulurijupimub.pdfIn PDF document text
    • https://shevtsov-art.com/uploads/files/dolitudetunojosu.pdfIn PDF document text
    • https://funeralinnovations.com/copilots/upload/files/sisolizovobaxasiwi.pdfIn PDF document text
    • http://tiwtactic.com/userfiles/files/dezimekifuzutotunem.pdfIn PDF document text
    • http://servicedental.it/userfiles/files/98351797677.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/k8lcnn5d12s1ntt6t6fejsdcr4/nebawijoronodikes.pdfIn PDF document text
    • http://moskvaznaet.ru/upload/files/6342623412.pdfIn PDF document text
    • https://sunnyrosesschool.com/userfiles/file/85989291257.pdfIn PDF document text
    • https://wanna-drive.nl/files/File/21084600840.pdfIn PDF document text
    • http://studiochiodo.eu/userfiles/files/91803112064.pdfIn PDF document text
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f92b723c231---4817735099.pdfIn PDF document text
    • https://njshore.drinkpoint.com/uploads/files/10509083419.pdfIn PDF document text
    • http://madervaf.com/admin/kcfinder/upload/files/40160956084.pdfIn PDF document text
    • https://777mto.org/contents/files/40651384704.pdfIn PDF document text
    • http://cocoal.com/uploads/file/gugevukoneni.pdfIn PDF document text
    • http://adas-muko.pl/photo/file/bimiruzikabezelunabuki.pdfIn PDF document text
    • http://www.amanuttarakhand.org/ckfinder/userfiles/files/91017483571.pdfIn PDF document text
    • https://vanchuyenduongsat.vn/upload/files/tuzesofotelovudadisokile.pdfIn PDF document text
    • http://www.lesboutiquesquercitaines.com/kcfinder/upload/files/wazokesaralijupudunenave.pdfIn PDF document text
    • http://rydelko.pl/userfiles/file/4437854176.pdfIn PDF document text
    • http://balade-pierry.fr/userfiles/file/98075711803.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/d5cd030e8f1d73aad6e2fa785093c305/bumalovale.pdfIn PDF document text
    • https://ceiling.holcom.vn/webroot/img/files/38498583506.pdfIn PDF document text
    • https://irastuff.com/admin/ckfinder/uploads/files/widaworulegejoxezabusol.pdfIn PDF document text
    • http://raudhatuljannah-gma.com/assets/kcfinder/upload/files/35117678245.pdfIn PDF document text
    • https://chameleoncoupons.com/adgprocessing/uploads/files/36797800254.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=lagaan+t%C3%BCrk%C3%A7e+dublaj+indirPDF link annotation
    • http://fotografieindex.nl/images/uploads/51872553686.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_off000781c7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000781c7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000781c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781C7 17900 bytes
SHA-256: 021ca7bd4e4c0691e52d9de890ef7905bebc02ba37c9b058ddcc9f271778a556
font_01_sfnt_off0007ae58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE58 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007c578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C578 10944 bytes
SHA-256: 9d8015cb4e870f8996f8df90e66bbe7f91e6dd9f942ec55b3bf875846aab48ba