Malicious PDF — malware analysis report

Static analysis result for SHA-256 af28b9f089f9d80f…

MALICIOUS

PDF

325.0 KB Created: 2022-03-09 07:31:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 487c1aa48c8f3c77e3836c0a5e284aba SHA-1: 09c0a69ad51d79ff9c5f2b65f18c71786e7b211f SHA-256: af28b9f089f9d80fe09297b053eb6aca54d1975595dad1017ba83628c9a31e4a
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6935

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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=marshall+major+2+guide PDF link annotation
    • http://airconbank.com/upload/fckeditor/file/40031718773.pdfIn PDF document text
    • https://newshieldinsurance.com/demo/gsa/final/images/file/dakuzoruxim.pdfIn PDF document text
    • http://dakmoto.cz/obrazky/file/20749869970.pdfIn PDF document text
    • http://rkenterprisesonline.com/FCKeditor/file/5824858941.pdfIn PDF document text
    • http://asthmabd.net/journal/assets/ckeditor/kcfinder/upload/files/1046390295.pdfIn PDF document text
    • http://cpghollywood.com/userfiles/files/viguzemupawig.pdfIn PDF document text
    • https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/losizibosibuseku.pdfIn PDF document text
    • http://ktimavoyatzi.gr/images/files/files/buvikumananozokitoniburi.pdfIn PDF document text
    • http://monte-castelo.com/cliente/conteudos/files/razukufegikajugowotog.pdfIn PDF document text
    • https://www.comperat-89.fr/ckfinder/userfiles/files/95315024614.pdfIn PDF document text
    • http://3wsystems.com/shipinc/userfiles/files/febalunigegegedorat.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/podolezifew.pdfIn PDF document text
    • http://cristal-in.fr/userfiles/file/vusojugunor.pdfIn PDF document text
    • http://donateagift.eu/userfiles/file/94755695066.pdfIn PDF document text
    • http://simonkuehner.de/gfx/userfiles/files/90278588710.pdfIn PDF document text
    • http://www.avtoschool71.ru/kcfinder/upload/files/61721989453.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2022-2-27/20220227054521115797.pdfIn PDF document text
    • https://calprin.com/ckfinder/userfiles/files/femimamoxa.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/162166d733d43d---bedexafujezi.pdfIn PDF document text
    • http://journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/nopipif.pdfIn PDF document text
    • https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/90865388066.pdfIn PDF document text
    • http://sinosteelcode.com/filespath/files/20220228210558.pdfIn PDF document text
    • http://iwakuniyumiya.com/js/kcfinder/upload/files/magojaxipageniv.pdfIn PDF document text
    • http://www.sosonomo.com/ckfinder/userfiles/files/91341534775.pdfIn PDF document text
    • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/waxukukegeruwetotajew.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1621bbb2d31059---83892585562.pdfIn PDF document text
    • http://ingmarcofaedi.com/userfiles/files/pabisegezamegijub.pdfIn PDF document text
    • http://heatexchangersolution.com/upload_fck/file/2022-2-28/20220228125106321319.pdfIn PDF document text
    • https://caror.hu/ckfinder/userfiles/files/suxivasoraketenuxofulok.pdfIn PDF document text
    • http://cambresisemploi.fr/ckfinder/userfiles/files/zasaxudimatakotile.pdfIn PDF document text
    • https://essaidafm.com/uploads/FCK_files/file/38808808320.pdfIn PDF document text
    • http://m2m2design.com/userfiles/30124475040.pdfIn PDF document text
    • http://waheedullahauto.ae/admin/kcfinder/upload/files/78811375560.pdfIn PDF document text
    • http://pastoret.it/userfiles/files/nuzowuzaxatasovukasoris.pdfIn PDF document text
    • http://yamada-kajuen.com/js/kcfinder/upload/files/sobolug.pdfIn PDF document text
    • http://sv-orhidea.ru/upload/files/77371098336.pdfIn PDF document text
    • http://inistor.com/ufiles/files/lojoguxazati.pdfIn PDF document text
    • https://ewastexperts.com/userfiles/files/89512922309.pdfIn PDF document text
    • https://ilonew.tasksplan.com/userfiles/files/81758964661.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/0ae41cf582189660646a68fc01900ca4/52612281529.pdfIn PDF document text
    • http://leaguengn.com/userfiles/file///sufavoremijivunexedelo.pdfIn PDF document text
    • http://sadvita.lt/pav/file/23095107811.pdfIn PDF document text
    • http://www.pacautomarketing.com/file/bomep.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
    +2 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a1cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1CC 10836 bytes
SHA-256: 8e17a65542bf566b175a3b387ea9c2e1c40d140ca35c1175aa3555b6f0f4886e
font_01_sfnt_off0004ba97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA97 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004d1b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D1B2 19284 bytes
SHA-256: e8bbb6711c74224d89bf8f7e291fc6634f504d0f4caf059076b5d47d977edb4a

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