Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bdfed19d88460e…

MALICIOUS

PDF

604.5 KB Created: 2022-03-15 08:18:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: d873270e6e5c563757e3030b8111090d SHA-1: fc32e6c82ca0603188fd6b6aa4204521cd9f6214 SHA-256: 88bdfed19d88460e81e48610703de2a63c10ff5d5bef06a416f62cca2ead145d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2897

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://aiaciran.org/cache/fck_files/file/92307612956.pdf In PDF document text
    • https://turismopontevedra.com/ckfinder/userfiles/files/55314565750.pdfIn PDF document text
    • https://jyapa.com/jhuoyue/uploadfiles/67949783497.pdfIn PDF document text
    • http://kolaykanal.com/userfiles/files/lofuvowekomevumovidipuzad.pdfIn PDF document text
    • http://garoli.com.br/js/kcfinder/upload/files/71255064751.pdfIn PDF document text
    • http://argol-editions.fr/userfiles/file/73856389589.pdfIn PDF document text
    • https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/tifogafezugemoxopoj.pdfIn PDF document text
    • http://conf.gorganiau.ac.ir/kcfinder/upload/files/67420774900.pdfIn PDF document text
    • http://atomicattack.com/atomic/fckimages/file/72109706025.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/2nlqj6pqm0u68nem88sdvqsp8k/5900287620.pdfIn PDF document text
    • https://tekstilkentrehber.com/upload/ckfinder/files/50470147479.pdfIn PDF document text
    • http://motopujcovnateplice.cz/userfiles/file/fafuvimitifopibanulapow.pdfIn PDF document text
    • https://adm.ativo.com/js/kcfinder/upload/files/wigidutenulun.pdfIn PDF document text
    • http://test-webursitet-ru.webursitet.ru/Files/file/takuzud.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/14075296784.pdfIn PDF document text
    • http://195exim.com/datas/files/28371444068.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16204bb05ccf22---kokolizoxekezutesakapufas.pdfIn PDF document text
    • http://gkz-crimea.ru/userfiles/file/56189350250.pdfIn PDF document text
    • http://bellamy.tw/uploads/files/202202172348329852.pdfIn PDF document text
    • https://coprose.com.mx/kcfinder/upload/files/84163901536.pdfIn PDF document text
    • https://tiger-security.net/webroot/upload/files/vimopogipaserewilaxa.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621295af77c04---diwevutozite.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/felas.pdfIn PDF document text
    • https://al-farh-iq.com/upload/userfiles/file/80007918785.pdfIn PDF document text
    • http://uniquehotelsolutions.com/files/others/24368128886.pdfIn PDF document text
    • http://2013.letnifestiwal.pl/ckfinder/userfiles/files/jaked.pdfIn PDF document text
    • http://www.hkrns.org.hk/ckfinder/userfiles/files/25515216945.pdfIn PDF document text
    • https://holcom-wd.holcom.vn/webroot/img/files/belaj.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/towuwipekenekiborasu.pdfIn PDF document text
    • http://ekouklid.eu/UserFiles/file/golodabuko.pdfIn PDF document text
    • http://www.historialmarista.org/js/kcfinder/upload/files/fifuropelifolomokifa.pdfIn PDF document text
    • http://anktk.ufnk.fr/app/webroot/files/file/7113201883.pdfIn PDF document text
    • http://duhochoangthanh.com/upload/files/genupuziselupenogap.pdfIn PDF document text
    • https://tasteadmin.com/ckfinder/core/connector/php/custom/wysi_uploads/files/xolixo.pdfIn PDF document text
    • http://falconartistmanagement.com/ckfinder/userfiles/files/47587616089.pdfIn PDF document text
    • https://candica.pl/ckfinder/userfiles/files/15807061787.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/a946f53e958a9bfdf9cca9be2c65c542/towositesi.pdfIn PDF document text
    • http://cascinamana.it/userfiles/file/55090954712.pdfIn PDF document text
    • https://durimawar.com/contents/files/31808562218.pdfIn PDF document text
    • https://ketex.com/trcgp/ckfinder/userfiles/files/zimulogam.pdfIn PDF document text
    • http://www.studioamorosi.com/notizie/allegati/navewoturuzuzu.pdfIn PDF document text
    • https://mumunono.projetslimer.com/ressource/file/divomexemadefof.pdfIn PDF document text
    • http://mnwebdesign.dk/userfiles/file/12220696035.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/gigiva.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=electrical+wire+chart+pdfPDF link annotation
    • https://centralcms.coodex.net/galeria/files/lekagokuzurot.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
    +4 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0009039f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9039F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00091aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91ABA 18072 bytes
SHA-256: ea5de101e8c369d313a43169562e4574210b59bdd94e8df54a5f26ea85d0adf4
font_02_sfnt_off000949b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x949B7 10392 bytes
SHA-256: 56a29ba293408ea5cd940a4b69432391f9b88ede4beaf9bdcd2c8f8764e6b5b1