Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d10f1a5e63109c…

MALICIOUS

PDF

334.3 KB Created: 2022-04-01 16:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: a83d5282c8e1ea7cbd6ad314776cea7d SHA-1: 6c68e786201f44f859344d4c8690a755245b8788 SHA-256: c5d10f1a5e63109ca63d8925ff6c0aeb42876d4d93009ecc9f823d2d86137be2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

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://mifuj.co.za/XSRYdR1H?utm_term=jane+eaton+hamilton PDF link annotation
    • http://www.vzwapart.be/upload/files/dozimok.pdfIn PDF document text
    • http://karinameal.ru/imgdish/files/jozizomulori.pdfIn PDF document text
    • http://st-johnson.com/Uploadfiles/files/86271009430.pdfIn PDF document text
    • http://zavodmdu.ru/userfiles/files/72039543536.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/162047e51964b3---buratowutatomosegisobe.pdfIn PDF document text
    • http://vietcem.vn/public/default/ckeditor/files/zibafuvakud.pdfIn PDF document text
    • http://mecateengenharia.com.br/ckfinder/userfiles/files/rovoruviwijida.pdfIn PDF document text
    • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/dc4a7259d9ac2eef377937f9c39406a9/gifagadobipepiz.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/98828204100.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1620a223a8a256---gonisugaguvibovusadafawo.pdfIn PDF document text
    • https://juniorclublivorno.com/sitonews/images_upload/files/35592382315.pdfIn PDF document text
    • http://www.littletreepreschool.com/admin/kcfinder/upload/files/rodewakapoxalanaxemigozik.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/25355998025.pdfIn PDF document text
    • http://buafit.bg/Uploads/files/27560542172.pdfIn PDF document text
    • https://tideandtigers.com/ckfinder/userfiles/files/maxirazefav.pdfIn PDF document text
    • http://vhshf.de/File/widebowo.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/e0f21976edee7263a122a413c00cb09c/40733255280.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/162226c470437a---64070624080.pdfIn PDF document text
    • http://elmasryeverline.net/public/kcfinder/upload/files/84701696193.pdfIn PDF document text
    • http://hytechcommunications.com/userfiles/file/15900344388.pdfIn PDF document text
    • http://dhf-china.com/d/files/jadawakuwilal.pdfIn PDF document text
    • http://muratdizayn.com/panel/kcfinder/upload/files/susoxakedivudimogufe.pdfIn PDF document text
    • http://erictex.com/ufiles/files/nusupeworedujivase.pdfIn PDF document text
    • http://www.veedik.com/assets/admin/kcfinder/upload/files/sojetotofufupiwikaxisojop.pdfIn PDF document text
    • https://123natura.com/stockages/files/30044407486.pdfIn PDF document text
    • http://www.first-classlogistics.com/image/upload/File/4674678695.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/162334ddfa3f66---11700964968.pdfIn PDF document text
    • http://ivankrivanek.com/userfiles/file/nijajomivibepevujagidoro.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_off0004c760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C760 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004df77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF77 10096 bytes
SHA-256: 383371e0c7b249a0cf442d5d78aebdca559fb924273afaf6dad842ed06c2e330
font_02_sfnt_off0004f5b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5B4 20236 bytes
SHA-256: af2410051b0495785f4ee13e7392679cc88e8ea5add2185dde50c5b8e56c6b62