Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4da1ea526301828…

MALICIOUS

PDF

518.2 KB Created: 2022-03-29 01:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 18c26b069a28bb881a4f8095fbedb4bf SHA-1: fa8d8685e79f9d9b59e50a3e3c7df879952c970d SHA-256: d4da1ea526301828ff298d98f46760cf90a868810855a70ab18ef3facc7f13e5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4035

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cafij.co.za/XSRYdR1H?utm_term=supply+chain+management+tutorials PDF link annotation
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162183a107abc2---gemud.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/kotirevuweb.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1624208a637f3d---82031959159.pdfIn PDF document text
    • https://galerieportelouise.be/userfiles/files/91133177030.pdfIn PDF document text
    • http://www.glutec.it/_admin/kcfinder/upload/files/26053121554.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/84bdd7be59e84d5ca1e3cf9cc310e902/45846821203.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16205711fb824d---xinafiwasodafemumofoni.pdfIn PDF document text
    • https://satellietgroep.nl/userfiles/files/veburojuxeribitifamalof.pdfIn PDF document text
    • http://tarasovfabrika.ru/uploads/file/lapamupupovupoxited.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16207f529a2930---24961805422.pdfIn PDF document text
    • https://abm-network.com/kcfinder/upload/files/fezugavofegifumefusi.pdfIn PDF document text
    • http://testwebb.net/kcfinder/upload/files/mezafatizuzapa.pdfIn PDF document text
    • http://amanetauto.eu/kcfinder/upload/files/jarolezupifonotadexepa.pdfIn PDF document text
    • http://heydarbaba.org/resimler/files/29274612027.pdfIn PDF document text
    • http://marketingnews.fr/images/file/79408050658.pdfIn PDF document text
    • https://nls.vn/upload/files/kuxogebe.pdfIn PDF document text
    • http://herbwaterthailand.com/userfiles/files/noxojurupilepozo.pdfIn PDF document text
    • http://designpavelzapletal.cz/files/file/11884703550.pdfIn PDF document text
    • http://hockjoohin.com/admin/uploads/file/fowexizubaselajolukod.pdfIn PDF document text
    • http://herbier.musee-oberlin.com/img_db/tuwoletodapev.pdfIn PDF document text
    • http://eizadicenter.com/images/upload/files/77061465465.pdfIn PDF document text
    • http://ubytovani-budejovice.cz/picture/vtextu/file/35045753220.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/fuded.pdfIn PDF document text
    • https://habibitoursegypt.com/ckfinder/userfiles/files/wedujujekax.pdfIn PDF document text
    • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/f950d5cd25fb395afd3658023df3cbc1/12347012840.pdfIn PDF document text
    • http://pnl.ac.id/asset/kcfinder/upload/files/mugidajemewugiderog.pdfIn PDF document text
    • http://turksebruiloften.nl/userfiles/file/jemewepokizavigudugukex.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/11345989645.pdfIn PDF document text
    • http://www.darvidproperty.com/news/file/rorewivovor.pdfIn PDF document text
    • https://ontozescentrum.hu/tmp/febafiwolateluwizez.pdfIn PDF document text
    • http://www.tiendadelbordado.com/ckfinder/userfiles/files/judukupimisutenuvo.pdfIn PDF document text
    • https://umutisi.com/umut/upload/files/58967755855.pdfIn PDF document text
    • https://carnac.kendalch.com/upload/files/bovemotilile.pdfIn PDF document text
    • http://binhthuocsau.com/hinhanh/file/jobuxekanilexo.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622d50e6a119b---75869759872.pdfIn PDF document text
    • http://kammed.com/userfiles/file/40684523022.pdfIn PDF document text
    • http://www.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/99398231019.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 extracted file (font_00_sfnt_off0007a85a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007a85a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007a85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A85A 11108 bytes
SHA-256: eb7b6cbe00123cf929cf5be505dfd99208828d8d6c3e9e4385f7c8ef40984ef7
font_01_sfnt_off0007c21a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C21A 18288 bytes
SHA-256: 9be2ea6e5335ebc836c9b50e1abd114ecb6d26875aeefeb5dde6cf73249fb92a
font_02_sfnt_off0007f1e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1E3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9