Malicious PDF — malware analysis report

Static analysis result for SHA-256 72690f7d90dafb6e…

MALICIOUS

PDF

274.0 KB Created: 2022-03-02 11:46:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: 1b8233f64b29e4afd902d91bd398a4c4 SHA-1: 0ef7097d903935b87de30317c1d7354ad2365218 SHA-256: 72690f7d90dafb6e5d13ccab068e2e52836b6131ffd18d1c18a516cd2754e5e9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6903

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://funstoreus.dialog.org/userfiles/file/39232207105.pdf In PDF document text
    • http://gagutp.com/sa_upload/userfiles/file/20220222035339.pdfIn PDF document text
    • http://www.otevrenysklep.cz/ckfinder/userfiles/files/libiruvetejedusu.pdfIn PDF document text
    • http://anhhieu.vn/hinhanh/file/76944787901.pdfIn PDF document text
    • http://qiangka.com/ckfinder/userfiles/files/bafojezudabufolegozur.pdfIn PDF document text
    • http://av-jet.ru/userfiles/file/zetifobarit.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/2022212246397709.pdfIn PDF document text
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161fdb80f75e9a---fesofetudas.pdfIn PDF document text
    • https://finduspeople.it/upload/files/82345076371.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/pipubibegexi.pdfIn PDF document text
    • https://guehenno.kendalch.com/upload/files/838439136.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/donuzepopiz.pdfIn PDF document text
    • https://purmoradiatoriai.lt/images/files/jozepudido.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16200fec5eb2c8---75410431136.pdfIn PDF document text
    • https://boucherienabli.com/uploads/FCK_files/file/fedogifofumora.pdfIn PDF document text
    • https://lp-tracking.com/userfiles/file/loraliwe.pdfIn PDF document text
    • http://gradn.ru/uploades/fckeditorfile/nexogofuz.pdfIn PDF document text
    • http://nebodom.com/userfiles/file/95178488810.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2022-2-22/20220222190137654953.pdfIn PDF document text
    • http://sherry-japan.com/uploads/files/17673037219.pdfIn PDF document text
    • http://schule.havonix.com/ckfinder/userfiles/files/rikebira.pdfIn PDF document text
    • http://musiclivemarsala.com/userfiles/files/94816122915.pdfIn PDF document text
    • http://psycare-spb.com/userfiles/file/rujerozebenepukeboga.pdfIn PDF document text
    • http://tlbafw.com/include/upload/vupuborabaxejajoset.pdfIn PDF document text
    • https://dolaodong.baohohoanglong.com/userfiles/file/49135778544.pdfIn PDF document text
    • http://awards.nl/img/cms/file/87850743534.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f78406ed7a---lovinivepakavipavuremide.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/ritejotatif.pdfIn PDF document text
    • https://uncme.org.br/Gerenciador/kcfinder/upload/files/19221706418.pdfIn PDF document text
    • http://schneider-glossa.ru/kcfinder/upload/files/68013020821.pdfIn PDF document text
    • https://annamsaigonlaw.com/upload/files/3287208608.pdfIn PDF document text
    • http://avrasyated.org/nedmin/production/ckeditor/kcfinder/upload/files/zabonovamiwor.pdfIn PDF document text
    • http://sieuthivatlieuhoanthien.com/upload/files/fizotoxeduvojen.pdfIn PDF document text
    • https://funeralinnovations.com/copilots/upload/files/55730349952.pdfIn PDF document text
    • https://implant-drill.com/userfiles/file/xavimelekagaw.pdfIn PDF document text
    • http://monthclean.com/uploads/files/202202091853583708.pdfIn PDF document text
    • http://fashioneducation.ru/userfiles/file/32350258304.pdfIn PDF document text
    • http://apart1day.ru/file/sejejexat.pdfIn PDF document text
    • http://gz-theoutfit.com/UploadFiles/FCKeditor/20220218175929.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1620fb11e83486---18642869351.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/88189922961.pdfIn PDF document text
    • http://isisorganizasyon.net/panel/kcfinder/upload/files/23308659405.pdfIn PDF document text
    • http://blue-balloon.pl/files/files/84359434130.pdfIn PDF document text
    • http://konditsionery-odincovo.ru/upload_picture/file/rifoxutugowejesu.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/ruliwiteledafe.pdfIn PDF document text
    • https://ucknef-basket.fr/images/files/vizoxejikebarosadezed.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=drill+down+report+in+ssrsPDF 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
    +5 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d56e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D56E 10312 bytes
SHA-256: 5f27f7c47e6d7f6be4297275cbe4b9b53dd16fdab55df3cf6eb69349fe003ed4
font_01_sfnt_off0003ecbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ECBE 19544 bytes
SHA-256: 6e7a6d7ef09c1d884fdd8c1d52f3dff127a0cde0efab917b8782b76f98d05944
font_02_sfnt_off000420cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x420CB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9