Malicious PDF — malware analysis report

Static analysis result for SHA-256 726f5a6b2e3af816…

MALICIOUS

PDF

326.6 KB Created: 2022-02-18 07:43:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: 1e2e02dff2c655bf6c022bd68725c428 SHA-1: eb1475dfa1dbeae4fb74530fce7893d27fb67c93 SHA-256: 726f5a6b2e3af8169e54954150a4c0ed9921865d0761d4ec35160865e6b902c6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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://cafij.co.za/XSRYdR1H?utm_term=ielts+gre+nova+listening+test+5+answers PDF link annotation
    • http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/tirivatobile.pdfIn PDF document text
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619ccd576e2b1---tikexisesa.pdfIn PDF document text
    • http://fskyok.com/uploadfile/files/31371425394.pdfIn PDF document text
    • https://makanbanyak.net/contents//files/luximorob.pdfIn PDF document text
    • http://prestopc.it/upload/file/21840935988.pdfIn PDF document text
    • http://sieuthiduanbds.com.vn/kcfinder/upload/files/34068125296.pdfIn PDF document text
    • http://oticonshop.com/ckfinder/userfiles/files/36652817810.pdfIn PDF document text
    • https://stmarys-perthamboy.com/upload/File/35353031025.pdfIn PDF document text
    • http://studiotecnicopinto.it/userfiles/files/57089665445.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e183523eebf---66098350795.pdfIn PDF document text
    • https://karapinarinsaat.net/userfiles/upload/file/lozuvun.pdfIn PDF document text
    • http://smartbankingchoices.org/app/webroot/js/kcfinder/upload/files/kelewovel.pdfIn PDF document text
    • http://bestbelly.org/content/files/files/91967540308.pdfIn PDF document text
    • http://karate-talence.com/newsite/userfiles/files/79291840223.pdfIn PDF document text
    • http://zlhk.ru/upload_picture/file/94129008147.pdfIn PDF document text
    • https://epiphanych.com/images/file/zaruvidirifeto.pdfIn PDF document text
    • http://rilta.net/userfiles/files/domisuxopigezixakizogajur.pdfIn PDF document text
    • http://melodylavernebettencourt.com/media/file/foneku.pdfIn PDF document text
    • http://rehahomecare.com/upload/editor/files/nulamiretesagaremotaga.pdfIn PDF document text
    • http://drukarnia-warszawa.pl/pliki/file/sevejosafudenekib.pdfIn PDF document text
    • http://chelseacarpet.com/ckfinder/userfiles/uploads/60019102738.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b55e97a4ae9---dawomoritisolerin.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/161454ef91b928---xobemokuxotodeneb.pdfIn PDF document text
    • https://gdaniec.com/upload/files/gatenuji.pdfIn PDF document text
    • https://agito.wb35.org/sites/default/files/user/file/narudupo.pdfIn PDF document text
    • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161786dd5f3ada---namixopaduwer.pdfIn PDF document text
    • https://ratsimae.ee/media/contents/file/7170497243.pdfIn PDF document text
    • http://brukbet.com/user_images/file/mutezesosur.pdfIn PDF document text
    • http://etiquettes-adhesives-bobine.fr/kcfinder/upload/files/tarepipajizoroji.pdfIn PDF document text
    • https://prestinieurope.com/userfiles/files/sijiwade.pdfIn PDF document text
    • http://banghetretruc.com/media/ftp/file/risigoperaz.pdfIn PDF document text
    • https://quatcongnghieput.com/uploads/files/bixulokakavisigov.pdfIn PDF document text
    • https://seger.cz/userfiles/file/fitekivolaruwibuvufimid.pdfIn PDF document text
    • https://share.linkilike.com/libraries/kcfinder/upload/files/83605189383.pdfIn PDF document text
    • https://hfbee.tw/upload/ckfinder_temp/files/20210825170347.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_off0004b169.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004b169.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004b169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B169 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004c889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C889 10520 bytes
SHA-256: b3a7861165fd9a6b3ef11a1241e0df0e0965eba0dee0ebf469efffdce5594ed5
font_02_sfnt_off0004e0b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0B5 16484 bytes
SHA-256: 3359da271f1ad28c02d4b08c773fbe79c7f0a353d7d02928a1066b1689fc3acf