Malicious PDF — malware analysis report

Static analysis result for SHA-256 78228bfd8bc1a6ff…

MALICIOUS

PDF

548.7 KB Created: 2022-02-25 20:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 942fb699d717351fc8b37b17623c43dc SHA-1: c16bae4e728c2a099b0c157fab0412853477d297 SHA-256: 78228bfd8bc1a6ffc119cbb6796425c1d41650c450eb40494bd4bb87906b634d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5292

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://sunuf.co.za/XSRYdR1H?utm_term=alice+in+wonderland+book+review+pdf PDF link annotation
    • http://stellarp.com/userfiles/files/16152052667.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/vuxawuvefavuxugow.pdfIn PDF document text
    • https://festivaldelmaridaje.com/sgi_userfiles/userfiles/files/zosutiziva.pdfIn PDF document text
    • https://ismet.com.br/ckfinder/userfiles/files/fexoloxujisa.pdfIn PDF document text
    • http://clinicaveterinariailmarzocco.it/userfiles/files/zujawosuvuzadofepiropaw.pdfIn PDF document text
    • http://leebyunghun.org/new/upload/board/files/zofipakigovikupusamifazon.pdfIn PDF document text
    • http://cobbpaynefamilyreunion.com/clients/862770/File/ziribodonewisimumiw.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ef2cc3f822---10279250710.pdfIn PDF document text
    • http://areawifi.com/DESARROLLO/userfiles/files/sirodij.pdfIn PDF document text
    • https://treasurehunterdetectors.solar-ovens.net/ckfinder/userfiles/files/vudupajowosiledutixobezez.pdfIn PDF document text
    • http://www.chestheart.org/assets/ckeditor/kcfinder/upload/files/sejekis.pdfIn PDF document text
    • https://graciaindoutama.com/kingkong/userfiles/files/firuluxitok.pdfIn PDF document text
    • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/6d710aabb98ab8843b49414342cfe1d0/vimiwisukakojupesisore.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617c20c1154f4---30283381655.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153f9950773e---50172815677.pdfIn PDF document text
    • http://hdg-gmuend.de/userfiles/files/fepolelegarexidaxu.pdfIn PDF document text
    • http://naosgym.com/userfiles/files/79299652676.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161debdbedb9e7---65255623872.pdfIn PDF document text
    • http://elementyzlaczne.pl/media/file/22605490122.pdfIn PDF document text
    • https://beltamas.by/content/Files/47649578863.pdfIn PDF document text
    • http://liccuza.ro/stiri_files/file/nogavekabofiribog.pdfIn PDF document text
    • http://swvocal.com/data/se2/file/80229319501.pdfIn PDF document text
    • http://studiotipaldo.com/userfiles/files/78534495641.pdfIn PDF document text
    • http://abmys.org/kcfinder/upload/files/81620599113.pdfIn PDF document text
    • http://thuocnam.xyz/images/files/65655261420.pdfIn PDF document text
    • http://df-foundry.net/d/files/lafoniwufenilalawosemagep.pdfIn PDF document text
    • https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/sobutajijizan.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/34214384798.pdfIn PDF document text
    • http://123flower.doweb.kr/upload/files/26785321791.pdfIn PDF document text
    • https://tanhaithanhvalves.com/quangcao/admin/file/30683613703.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/9ea905a5cfed0b1e2c5427d10d0c6898/pezelebejevubuzefiro.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202201180703163976.pdfIn PDF document text
    • http://textstricker.de/benutzerdateien/jukepawajonojimix.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/161a399b23b177---fubovazodepipozepebekanes.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_off00082488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82488 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00083ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83BA8 10712 bytes
SHA-256: dc21bbaf8aa54579b22779947c65c9e05f07772957d3095dd508a7722043b061
font_02_sfnt_off0008542f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8542F 18280 bytes
SHA-256: 1ea5f2f85f01f00ef774ba6266b295a3304e422171a97a32c3de6d12511901e3