Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e373de771fa4498…

MALICIOUS

PDF

214.8 KB Created: 2022-01-28 16:21:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: b3d0b0ba539ac5e83be3519a23bec570 SHA-1: 6ba4c3f6b05d27db5c470fa4d3be8bbb918225e5 SHA-256: 4e373de771fa4498d5320e774944183c6a65cf52b1fbf5eb41b9947de4a54c7e
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7453

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://mifuj.co.za/XSRYdR1H?utm_term=android+application+developer+jobs+in+india PDF link annotation
    • https://febrerasesores.com/uploads/kcfinder/upload/files/55783204406.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/31365487060.pdfIn PDF document text
    • http://master-sign.ru/ckfinder/userfiles/files/sozobe.pdfIn PDF document text
    • http://xn--90ae5b.xn--p1ai/uld/files/4867878387.pdfIn PDF document text
    • http://burelomdo.com/ckfinder/userfiles/files/basutozenusilujixoda.pdfIn PDF document text
    • http://studiomontironi.eu/userfiles/files/rosovijurodafeledo.pdfIn PDF document text
    • http://www.dogwoodagility.nl/ckfinder/userfiles/files/95405124459.pdfIn PDF document text
    • http://floramarble.com/uploads/82272061830.pdfIn PDF document text
    • http://alt-1c.ru/userfiles/file/derowaki.pdfIn PDF document text
    • http://kiavysocina.cz/UserFiles/File/tapotuketixotuzalesatimit.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1618bb53203a05---58828821957.pdfIn PDF document text
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/duzawefarupibuniniwevof.pdfIn PDF document text
    • https://www.nissan-utilitaires-melun.fr/ckfinder/userfiles/files/79301972463.pdfIn PDF document text
    • http://a-spa.org/ckeditor/kcfinder/upload/files/30518669589.pdfIn PDF document text
    • http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/juviduvenerogabamiromilem.pdfIn PDF document text
    • https://www.cltservices.net/backoffice/kcfinder/upload/files/fifotomezituzugatasezuz.pdfIn PDF document text
    • https://www.sonorisation-auxerre.fr/ckfinder/userfiles/files/97320844592.pdfIn PDF document text
    • https://fnb-concepts.com/images/uploads/files/domakanisipazef.pdfIn PDF document text
    • http://spielundlicht.de/content_provider/documents/files/51848033606.pdfIn PDF document text
    • http://aaronandanthony.com/userfiles/files/zejijuvutaziwawuwapep.pdfIn PDF document text
    • http://spzn.narewka.pl/narewkagmina/userfiles/file/36375493150.pdfIn PDF document text
    • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/f36f5d2dc3c871e44771317352eabddd/49167277789.pdfIn PDF document text
    • http://machi-tomo.xyz/js/ckfinder/userfiles/files/44760901165.pdfIn PDF document text
    • http://chronoflex-dz.com/app/webroot/assets/js/kcfinder/upload/files/1672158792.pdfIn PDF document text
    • http://restravel.ru/ckfinder/userfiles/files/towumu.pdfIn PDF document text
    • https://bk.elbasyacademy.kz/vendor/admin/kcfinder/upload/files/87190626428.pdfIn PDF document text
    • http://tele-fonika.pl/upload/file/71642585834.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16173eb9cd5ed5---43296129577.pdfIn PDF document text
    • https://self-storage.sg/images/uploadedimages/file/gexotiwugep.pdfIn PDF document text
    • https://icaiaa21.scrs.in/kcfinder/upload/files/33520099242.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/639324296.pdfIn PDF document text
    • https://zenithservicos.com/userfiles/files/10311011361.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1617bed8c43ceb---42435271505.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_off0002ef00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF00 17224 bytes
SHA-256: 295e80b8bd6aefe9db3cb97a327a677e8f37939db4d8748d22461d0ef4fa8d0a
font_01_sfnt_off00031c18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C18 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000332bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332BC 10824 bytes
SHA-256: 69071fdb7a533380fdf3633d3ab3b42f165cd9cbf79fae5fc8f48a5212cf2d2d