Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9998fa9ebebcbdb…

MALICIOUS

PDF

239.3 KB Created: 2022-03-05 18:02:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 91d616804c55977d38ec37c3e6f996fa SHA-1: 0d4955f0c2247e7920c39b51c932ba8037072b9c SHA-256: f9998fa9ebebcbdb5f11368def07881abad2bcd415b2806846ee5e5106cce845
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8332

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://cafij.co.za/XSRYdR1H?utm_term=lower+back+pain+exercises+video+free PDF link annotation
    • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/zefizabosoju.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620054ef5cb09---50350913112.pdfIn PDF document text
    • http://jaqalsports.com/files/file/vetutukilumagolon.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/49216885833.pdfIn PDF document text
    • http://veewood.com/file_media/file_image/file/13546866158.pdfIn PDF document text
    • https://www.propertymegamart.in/admin/ckeditor/kcfinder/upload/files/ripazazunak.pdfIn PDF document text
    • http://www.pilatesyoga.hr/files/files/lovigofonog.pdfIn PDF document text
    • https://oriental-kitchens.com/userfiles/files/wuxosu.pdfIn PDF document text
    • https://baptistfriends.org/media/lifisi.pdfIn PDF document text
    • http://muacuoi.vn/Pictures/files/fuwifi.pdfIn PDF document text
    • http://scamps.biz/userfiles/file/rukutuw.pdfIn PDF document text
    • https://purmoradiatoriai.lt/images/files/35749752048.pdfIn PDF document text
    • http://ctnphrae.com/ckfinder/userfiles/files/ginemavijugifawesir.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe7cb4464ff---12492804708.pdfIn PDF document text
    • http://stylingstories.nl/kcfinder/upload/files/96241461877.pdfIn PDF document text
    • https://kohaz.hu/files/file/fokowotuwijirusin.pdfIn PDF document text
    • http://stnicholasway.com/userfiles/file/18138338723.pdfIn PDF document text
    • http://mybooksite.net/kcfinder/files/mesowonipeve.pdfIn PDF document text
    • https://csam-villepinte.org/uploads/images/file/32284187499.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/90353308352.pdfIn PDF document text
    • https://whereestar.com/marinarubicon/admin/file/sibalosotepuwuwovuteto.pdfIn PDF document text
    • https://ap-qatar.com/userfiles/files/kolixelijiz.pdfIn PDF document text
    • http://mgok.jutrosin.eu/userfiles/file/bujesebijugalixum.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9cbb3b2ace---junegipuvo.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/bazesuwolujus.pdfIn PDF document text
    • http://methese.com/upload/files/puzemalewakubigogamoro.pdfIn PDF document text
    • http://ros-grad.ru/fck_editor_files/files/26251652195.pdfIn PDF document text
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/824b5922f950ae16d5b0cb7bce9050fe/pamuvupijed.pdfIn PDF document text
    • https://esvigo.com/upload/files/tutora.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_off00034bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34BD9 10912 bytes
SHA-256: 180849e99d26c6f03020fd46e2e26043fd9363c112b293985afdaba2f5fa4b78
font_01_sfnt_off00036512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36512 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00037c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37C2D 18916 bytes
SHA-256: 5c1fc9d5ea3882052204985d4db69c652d485296c2bf3915a750dcff29ae0e56