Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b105fde1c1edec…

MALICIOUS

PDF

248.8 KB Created: 2022-03-03 16:53:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: f1422314c624243ac1f5bca4304e25d8 SHA-1: 5da8da9f2815fe4257cc54f8154c20d6cf433272 SHA-256: 72b105fde1c1edec248bcb91a4a98a8d4ecccf70541817a3a4c843b5446a73a6
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7006

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://wirut.co.za/XSRYdR1H?utm_term=phone+answering+machine+amazon PDF link annotation
    • http://mlspoland.co/files/file/46129531253.pdfIn PDF document text
    • http://giasuthanhdat.vn/Images_upload/files/wikisezuxuniwizeguzufasel.pdfIn PDF document text
    • https://antalis.emailingmanager.com/uploads/editor/file/sanuxuxafunosafa.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1621a6eb788267---neropesurefa.pdfIn PDF document text
    • http://xn--90aweabvm.xn--p1ai/ckfinder/userfiles/files/sugaxubebakuki.pdfIn PDF document text
    • https://www.oalysa.cz/ckfinder/userfiles/files/66353724896.pdfIn PDF document text
    • http://micruts.org/userfiles/file/biworeninuwijezab.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/39273ff6cf45ecccb7a641f0ec618e3f/xiterutatufamuxuwirofuw.pdfIn PDF document text
    • http://flathead.herosuite.com/userfiles/file/52062623397.pdfIn PDF document text
    • http://trinitysportsandleisure.ie/userfiles/file/78423458896.pdfIn PDF document text
    • https://www.dogruadimlar.com/admin/production/ckeditor/kcfinder/upload/files/rilitezujamogepekosez.pdfIn PDF document text
    • https://www.nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/zapuzizulimefoj.pdfIn PDF document text
    • https://telliogluhukuk.com/userfiles/file/lozopemumose.pdfIn PDF document text
    • http://factorysales.com/userfiles/files/wanudixujaj.pdfIn PDF document text
    • http://www.regional4.org.ar/administrador/kcfinder/upload/files/11772044627.pdfIn PDF document text
    • http://voltgroup.com.ua/assets/kcfinder/upload/files/zituripipumovezuzajedeseb.pdfIn PDF document text
    • http://ilovestory.com/upload/file/werudelowavogufebutajo.pdfIn PDF document text
    • http://www.firstpages.eu/app/webroot/files/userfiles/files/17007470914.pdfIn PDF document text
    • http://gpp300.fr/userfiles/file/suneboxo.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/23spvj7o86m97o4neartmtmb80/nixudulilivutuvefiteko.pdfIn PDF document text
    • http://uniquehotelsolutions.com/files/others/fevotowomotapijugulux.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/eb58f073bd4f62f550c32c4209dde1c2/23190355282.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fb62d50e697---lenipuroteweto.pdfIn PDF document text
    • http://adm-zhemtala.ru/files/files/dopibumolili.pdfIn PDF document text
    • https://sicurezzaips.it/uploads/file/61496807226.pdfIn PDF document text
    • http://ladyvenus.it/userfiles/files/82922898597.pdfIn PDF document text
    • https://www.yukule.com/ToBeDeleted/admin-assets/js/ckeditor_4.6.2_standard/kcfinder/upload/files/87349296954.pdfIn PDF document text
    • https://antiquites-opio.com/kcfinder/upload/files/40277053987.pdfIn PDF document text
    • https://nslogisticservice.com/userfiles/files/6245821758.pdfIn PDF document text
    • https://www.yamamotonouen.jp/js/kcfinder/upload/files/xolezabejirabonalixe.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620eef238215e---92694914402.pdfIn PDF document text
    • https://hamishehbaharcarpet.com/My_Project/Hamishe_bahar/ahar_img/files/mijiweloninojejobuli.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_off0003715f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3715F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003887a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3887A 19232 bytes
SHA-256: 105d7608664221f150402072d210fb4bd0acfb9f047d3e58b6b17d3ecd81009c
font_02_sfnt_off0003bb21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BB21 10680 bytes
SHA-256: 2aae60f69bc315b3038105344a39ba2df90dcf1af0294899cd96135114971748

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