Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f0282c53142a6c…

MALICIOUS

PDF

532.6 KB Created: 2022-03-09 08:15:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 6023c5ff0c010f57cfdf9f13e7f91391 SHA-1: 9cc6615c01dce5ebf79baac923ae194eba53c25d SHA-256: a4f0282c53142a6cf81152174687f27311de4e0c3882baa47b9b19ddca89dd11
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3746

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://loheb.co.za/XSRYdR1H?utm_term=herbal+medicine+journal+pdf PDF link annotation
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/162166fced5d3c---xedisekalinu.pdfIn PDF document text
    • http://fulepmark.hu/nyebu/fulepmark/userfiles/file/zawowiz.pdfIn PDF document text
    • https://ucknef-basket.fr/images/files/xizexakabavapajizikibefal.pdfIn PDF document text
    • https://weishinclinic.com/uploads/files/202202092029355082.pdfIn PDF document text
    • http://brothersconsultingllc.com/kcfinder/upload/files/11555683350.pdfIn PDF document text
    • https://epiphanych.com/images/file/zagumunajotujunodufivirag.pdfIn PDF document text
    • http://sinbad.sy/admin/kcfinder/upload/files/bofelufatimut.pdfIn PDF document text
    • http://faurau.com/luodan/images/userfiles/file/2957505250.pdfIn PDF document text
    • http://dslr-camera-on-rent.com/kcfinder/upload/files/52960669390.pdfIn PDF document text
    • http://lynxauto.ru/userfiles/file/kinifozexusadufoseju.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/mebajununipofore.pdfIn PDF document text
    • http://kubkao-kubpla.com/userfiles/files/9023460836.pdfIn PDF document text
    • http://proxima-design.cz/files/file/51971067410.pdfIn PDF document text
    • http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/rukogigexu.pdfIn PDF document text
    • http://www.mkfilm.it/ckeditor/kcfinder/upload/files/lokalekowal.pdfIn PDF document text
    • http://htygroup.com/upload/files/40493974814.pdfIn PDF document text
    • https://cometgroupinternational.com/ckeditor/ckfinder/userfiles/files/87336009771.pdfIn PDF document text
    • http://elektro-galerie-hamburg.de/userfiles/file/muzuvumafexomajonufezesad.pdfIn PDF document text
    • http://struna.bg/admin/kcfinder/upload/files/rogadado.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16217a862a6fa5---52658402420.pdfIn PDF document text
    • https://rozynoklinika.lt/userfiles/file/xuzisa.pdfIn PDF document text
    • https://micro-logic.ro/images/uploaded/file/41043698619.pdfIn PDF document text
    • http://basse-normandie.annuaire-regional.com/ckfinder/userfiles/files/16552734780.pdfIn PDF document text
    • http://anantasandesh.com/dbros/public/ckeditor/kcfinder/upload/files/luxijabage.pdfIn PDF document text
    • http://kantipursecurity.com/userfiles/file/muvubetevif.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161fb5dcc525e0---xetakoxekosakuxek.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/mobawisiwowe.pdfIn PDF document text
    • https://ddshower.com/ckfinder/userfiles/files/2159704911.pdfIn PDF document text
    • http://xn--bqrr0jw6bmw2g.com/userfiles/file/1646776991.pdfIn PDF document text
    • http://schunk-app.com/js/kcfinder/upload/files/49403707762.pdfIn PDF document text
    • http://becucci.it/userfiles/files/butosejamimemezoxafatisij.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/a9e8b8aaf95287d8a97029e94e17d4f6/76073676482.pdfIn PDF document text
    • http://dglytbt.com/upfolder/e/files/20220307224402.pdfIn PDF document text
    • http://huabulaw.com/uploadpic/2022-2/file/2022020509464073499.pdfIn PDF document text
    • http://cokhivietuc.webthoidai.com/img-vietuc/files/4181960014.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216124bef308---13067425707.pdfIn PDF document text
    • https://www.ibericaseguridad.com/admin/kcfinder/upload/files/4690244327.pdfIn PDF document text
    • http://westfield.qa/multimedia/userfiles/file/rojapos.pdfIn PDF document text
    • http://nena-artspace.com/ckfinder/userfiles/files/vopokatixuverupunugakewev.pdfIn PDF document text
    • http://mentoslaci.hu/admin/kcfinder/upload/files/xadudibesebonodefi.pdfIn PDF document text
    • https://olboihorgaszto.hu/editor_up2/puvad.pdfIn PDF document text
    • http://xn--80aafkatcapceshpicpg3h.xn--p1ai/pict/file/83777800995.pdfIn PDF document text
    • http://vizilo-vizitura.hu/admin/kcfinder/upload/files/jenug.pdfIn PDF document text
    • http://yijianjiance.com/userfiles/file/20220222090657_1237277404.pdfIn PDF document text
    • http://meimagedance.tw/ufiles/files/zenupijababutaneluxaxi.pdfIn PDF document text
    • http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/jakogo.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
    +5 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007dcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCC2 10876 bytes
SHA-256: f2770813207b7b2ac014ab82b0864edb2204e69544616b87050eecf435c746af
font_01_sfnt_off0007f57f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F57F 20156 bytes
SHA-256: aa98cbc58db855a01dd1ddcddb3c438a5a76eaf1b2b8485f4764d475159adfe1
font_02_sfnt_off00082a26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A26 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9