Malicious PDF — malware analysis report

Static analysis result for SHA-256 726106e12cf90f05…

MALICIOUS

PDF

441.5 KB Created: 2022-03-17 21:07:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-12
MD5: 6cabbc6e7dbbfc9470cb269caf828db2 SHA-1: c6bc50bc718161b95c0ffd5c1c4b9b3bf540c904 SHA-256: 726106e12cf90f0572991c9bb0edbf6d15ead2014d2b16f83855bdebe77083fa
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

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 http://de.ruben.pl/ckfinder/userfiles/files/21616923632.pdf In PDF document text
    • http://olsztyntransportmedyczny.pl/userfiles/file/30044649887.pdfIn PDF document text
    • http://ccemax.com/js/kcfinder/upload/files/tibixazoxisupiruzikajek.pdfIn PDF document text
    • http://www.creativitaecomunicazione.it/js/lib/ckfinder/userfiles/files/89525456293.pdfIn PDF document text
    • http://akvatoria.by/UserFiles/files/85451194989.pdfIn PDF document text
    • http://111-orte.com/testarea/cwsCMSlight/media/files/jomomutosudebos.pdfIn PDF document text
    • https://ladulceseguros.ar/noticias/fckeditor/file/37390981560.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622aa109b586b---93253083943.pdfIn PDF document text
    • https://asiapharma.la/files/files/33946624310.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/sesana.pdfIn PDF document text
    • https://sibois.eu/userfiles/file/zovewusuzojorowodotive.pdfIn PDF document text
    • http://private-dev.cliczone.fr/upload/userfiles/files/kunasome.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/58596cb197f1e9af1ce83318fc20a873/durawexanimigobukiz.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16225bad0aa22c---48090028692.pdfIn PDF document text
    • http://unstitchedfootwear.net/files/file/93186932973.pdfIn PDF document text
    • http://100gastro.cz/soubory/files/xakezob.pdfIn PDF document text
    • https://dichvumayphoto.vn/webroot/img/files/41638011212.pdfIn PDF document text
    • http://jjsgreatescape.com/uploaded_files/userfiles/files/92611602108.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/a2016c1e0a89c4e11990c4514cdf50b1/87736635017.pdfIn PDF document text
    • https://www.irisgroupbd.com/templateEditor/kcfinder/upload/files/wemirunakufikexem.pdfIn PDF document text
    • http://nislamengineering-ltd.com/assets/ckeditor/kcfinder/upload/files/silufudugikatuxomesunejo.pdfIn PDF document text
    • http://legrand-etika.su/kcfinder/upload/files/4473324344.pdfIn PDF document text
    • https://polytex.de/sites/default/files/88155836637.pdfIn PDF document text
    • https://youngshiny.com/userfiles/file/1644025363.pdfIn PDF document text
    • https://sapporomn.com/userfiles/files/duneriwetotebororinota.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/5hcs094a0sjs3jfui76g41ko9g/28657105542.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fffbdb8a4f2---zevalekunu.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16223cc1718d77---fevagilafijalexupa.pdfIn PDF document text
    • https://phatgiaolongan.com/upload/ckupload/files/wijafevasexokufopenu.pdfIn PDF document text
    • http://087334211.kad.tw/kads/ckfinder/userfiles/files/7135219952.pdfIn PDF document text
    • https://jurvamartin.com/userfiles/file/wetidepopovofeboxidedinod.pdfIn PDF document text
    • https://hagabb.ro/ckfinder/userfiles/files/40734100867.pdfIn PDF document text
    • https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/dofokine.pdfIn PDF document text
    • http://knx-shop.ru/admin/ckfinder/userfiles/files/60675996608.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/sutobox.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=b%C3%A0i+h%C3%A1t+hello+vietnamPDF link annotation
    • 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_off00066dd1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00066dd1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00066dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DD1 22080 bytes
SHA-256: b734897227aa821b3b35eddfc5b2180ea7370d8740a0d4a379aecdf2e445d8bb
font_01_sfnt_off0006a657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A657 10588 bytes
SHA-256: cac54620f240e227fa003e4b75ccb52a02bbe930778099817d6a6e21fa41614f
font_02_sfnt_off0006bd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD76 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9