Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3f4c14f6d91da1…

MALICIOUS

PDF

469.7 KB Created: 2022-03-04 05:27:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 4b0f7edf9ca0d3ee440898337b4e357f SHA-1: ae70a0028974e16df028cbd549d0e9ee18e60029 SHA-256: 5d3f4c14f6d91da1d6cafe296d807a33384da6b7fdb6986ecc68cca8cd8b5015
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3959

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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=obituary+samples+pdf PDF link annotation
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd95750fbb7---85366038755.pdfIn PDF document text
    • http://tourtraveltalk.com/app/webroot/js/kcfinder/upload/files/11114631615.pdfIn PDF document text
    • http://mudrberanova.cz/userfiles/file/87516024328.pdfIn PDF document text
    • https://obchodsezlatem.cz/upload/files/87612955078.pdfIn PDF document text
    • http://stroyvodservice.ru/upload/File/33430446064.pdfIn PDF document text
    • http://jinistudy.com/_UploadFile/Images/file/bumokipuxatifelutuj.pdfIn PDF document text
    • http://taxicityplus.ru/userfiles/file/31076035287.pdfIn PDF document text
    • https://asesoriagade.com/app/webroot/files/files/51308690642.pdfIn PDF document text
    • https://gyepracs.budvill.hu/userfiles/files/juzokajinisazure.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/147110145719c76a7dabee8b612e9f92/gifuvemokodidebowitixoxil.pdfIn PDF document text
    • https://asken.as/bilder/file/87045201136.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/tifujezifegupitirevoz.pdfIn PDF document text
    • https://hamishehbaharcarpet.com/My_Project/Hamishe_bahar/ahar_img/files/napemororibonomaso.pdfIn PDF document text
    • http://vishwkarmaenterprises.com/webroot/img/userfiles/files/repadekanusiwiwadaguta.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/162211dfaac408---gelodazikukixiwubes.pdfIn PDF document text
    • https://franchisefarm.franchiseharbor.com/files/files/52294091063.pdfIn PDF document text
    • http://hanauhrova.cz/files/lalilomofuno.pdfIn PDF document text
    • http://makeyourpartnermelt.com/userfiles/file/83690407468.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1622084e28a5b4---neliregosijev.pdfIn PDF document text
    • http://konberdbio.com/upload/files/85680941208.pdfIn PDF document text
    • http://hbaoge.com/upload/files/jozugepefitupiga.pdfIn PDF document text
    • https://lajovisena.com/gallery/file/pivokixutejeb.pdfIn PDF document text
    • http://hoteldudek.pl/data/aktualnosci_imgs/file/93298646238.pdfIn PDF document text
    • https://otoform.com/upload/ckfinder/files/72940667193.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/162087ffb384aa---kibakexizakabivesit.pdfIn PDF document text
    • http://legalhouse.pl/files/files/jikoxupidejuwe.pdfIn PDF document text
    • https://www.akita-tourism.com/assets/admin/plugins/kcfinder/files/vanitapimogogoditoz.pdfIn PDF document text
    • http://khungbangkhengiare.com/media/ftp/file/vivapepixujomiduzutamifi.pdfIn PDF document text
    • http://sgd42.ru/userfiles/file/tafevokadi.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216a125a64b0---magevupetasizikem.pdfIn PDF document text
    • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/161ff445a4769d---nonewalojivubidulil.pdfIn PDF document text
    • https://trinityautorepairs.com/uploads/files/12316745925.pdfIn PDF document text
    • http://glassinter.de/kcfinder/upload/upload/17448858971.pdfIn PDF document text
    • https://verticala.ro/images/userfiles/wamilanifudit.pdfIn PDF document text
    • http://liga-stf.ru/i/upload/files/41365133438.pdfIn PDF document text
    • http://yachtandtrade.com/files/sukeguvopo.pdfIn PDF document text
    • https://sgpm.krakow.pl/aaeventy/kcfinder/upload/files/489751136.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_off0006e693.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006e693.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006e693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E693 10812 bytes
SHA-256: 953d50c5cfb4abd52f10df61848414bef1d69d26abc49c47ec16c16c0aec1f90
font_01_sfnt_off0006ff67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF67 18600 bytes
SHA-256: 23f8088db64a3e03682df0be06127929e41e00c386eef5301bfd2cfa7b5e9482
font_02_sfnt_off00072fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FD7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9