Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f0088fea8f67b4…

MALICIOUS

PDF

420.6 KB Created: 2022-03-26 11:56:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 8ee9241dad543e524da592e30ebb18d8 SHA-1: ea89c2a69d66b16966f6d1b6141aa130d05f6fbe SHA-256: a4f0088fea8f67b4a0a51ae241a8f48ec75e052243fa6b8fd288d3c458883753
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3788

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://norin.co.za/XSRYdR1H?utm_term=wedding+crashers+2005+trailer PDF link annotation
    • http://bannails.com/fckeditor_userfiles/file/67147654803.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/0fb0f53ede4de3de7043c19e5449eafc/tisekepub.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1622113d1bdc73---70473806729.pdfIn PDF document text
    • http://bhk-aindling.de/userfiles/files/52268422140.pdfIn PDF document text
    • http://xn--80aafjbawrcdgsodbdciig4a5v.xn--p1ai/pict/file/siladagozawuperewux.pdfIn PDF document text
    • http://www.iharoskezmuvesek.hu/ckeditor/kcfinder/upload/files/6951068819.pdfIn PDF document text
    • https://mimpiindah1.com/contents/files/pufozevorisawikare.pdfIn PDF document text
    • http://adice-area.com/pictures/files/76693571380.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/448633f779f46eeacde27360ef8b38d7/xefawizafusowepupit.pdfIn PDF document text
    • https://karaari.leaddeehub.com/userfiles/files/kodipinosu.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/eoo33akf56rbgsgvdls80trmls/mowerudegibo.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16228da823b3ee---zamaridinufurawukewij.pdfIn PDF document text
    • http://auto-fiesta.ru/upload/files/pomonejemudolemavotavod.pdfIn PDF document text
    • https://mmgrowersg.com/ckfinder/userfiles/files/dasujoli.pdfIn PDF document text
    • http://bscartridge.com/pic/10533860631.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/888ea35405fb8789a0c20ce9747b2fca/42740773015.pdfIn PDF document text
    • https://urudolfa.sk/upload/files/65201108088.pdfIn PDF document text
    • http://envisystem.com/upload/userfile/files/xibaladinatozatopin.pdfIn PDF document text
    • http://coopaac.com/assets/kcfinder/upload/files/57602828668.pdfIn PDF document text
    • http://rockycheng.com/ckfinder/userfiles/files/67112393705.pdfIn PDF document text
    • http://crisismobile.com/ckfinder/userfiles/files/zevateboluk.pdfIn PDF document text
    • http://asbufestival.com/uploads/FCK_files/file/xujelegemasudukosabosivid.pdfIn PDF document text
    • http://cozyboutiquecruise.com/upload/fck/file/parira.pdfIn PDF document text
    • https://tckontrola.hr/files/borisusivapujulime.pdfIn PDF document text
    • https://stef-nancy.fr/upload/document/79559634921.pdfIn PDF document text
    • http://rlmlaw.com/images/edit_images/file/17643463283.pdfIn PDF document text
    • http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/22024064488.pdfIn PDF document text
    • https://kaparatt.com/images/File/dadokomebogimebabaw.pdfIn PDF document text
    • http://communication-pointcom.fr/userfiles/medias/64630135866.pdfIn PDF document text
    • http://upnbkk.com/file_media/file_image/file/6698274176.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/durigabigelalovujalorod.pdfIn PDF document text
    • https://herfection.herfection.tw/upload/ckfinder_temp/files/20220220233213.pdfIn PDF document text
    • http://ph-easycome.com/userfiles/file/jupijasowadifukigoga.pdfIn PDF document text
    • http://bf4.nim.ru/userfiles/files/58141414807.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fca404847ea---80260293129.pdfIn PDF document text
    • http://kazbani.ru/kcfinder/upload/files/gixujisejavot.pdfIn PDF document text
    • http://dsacare.com/admin/uploads/file/63281221247.pdfIn PDF document text
    • http://uniradioweb.info/userfiles/file/49977379121.pdfIn PDF document text
    • https://ost-fogging.com/upload/files/56155127966.pdfIn PDF document text
    • http://amongelite.com/ci/userfiles/files/nelesipemadovutudujaxazux.pdfIn PDF document text
    • http://smm-mm.com/uploads/news_file/35079274937.pdfIn PDF document text
    • http://sncelamel-dz.com/app/webroot/assets/js/kcfinder/upload/files/45464126161.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_off000622e5.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000622e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622E5 10900 bytes
SHA-256: 46f5d979be3aebe24aaa1b860e142fcc77e135178a01604a29906a844509f289
font_01_sfnt_off00063bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BF2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006530f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6530F 18060 bytes
SHA-256: 75236da77738f4cf71c14bfc5264988cefa2a7efe27638b1ef46bb90aeee124b