Malicious PDF — malware analysis report

Static analysis result for SHA-256 258ffd68bf3129b0…

MALICIOUS

PDF

252.1 KB Created: 2022-03-28 00:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: dee61ec40bd62b4bfbc58e4c7fb9334c SHA-1: d8ef862f5b779e658bff1c6deb1a69bb7c322b1a SHA-256: 258ffd68bf3129b06c9f2d858c8b0037ee08b515be8c3a0678c62affbddf457c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5298

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://lasermedia.cn/userfiles/file/fuwudetesasukipafafevexu.pdf In PDF document text
    • http://moto-bike.pl/userfiles/file/48598675133.pdfIn PDF document text
    • https://aakritidigitals.com/userfiles/files/gezaresukir.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16240d48fa5f9f---gudipi.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162259962a1253---19389974479.pdfIn PDF document text
    • http://fvv-hohenfelde.de/sites/default/files/files/76308688013.pdfIn PDF document text
    • https://chulintemple.org/CKEdit/upload/files/rutumurejuzegujeke.pdfIn PDF document text
    • https://chentimeboutique.com/uploads/files/202203280520189747.pdfIn PDF document text
    • http://ryukatsu.com/userData/board/file/vevapodowamujutep.pdfIn PDF document text
    • https://baldai.manovonia.lt/images/files/17730763882.pdfIn PDF document text
    • https://chief-moving.com/editor_upload/file/69150548328.pdfIn PDF document text
    • http://sokol.knezmost.cz/soubory/96604329044.pdfIn PDF document text
    • https://adm-consult.band-cm.com/userfiles/files/mewujajokujusavos.pdfIn PDF document text
    • http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/gewerabiza.pdfIn PDF document text
    • http://marasintl.com/public/ckfinderuploads/files/rebalujebilogev.pdfIn PDF document text
    • https://aiwatopup.com/ckfinder/userfiles/files/tafamupegab.pdfIn PDF document text
    • http://www.amis-simserhof.fr/kcfinder/upload/files/62740778244.pdfIn PDF document text
    • https://geneolock.com/locktactyuma/userfiles/file/nisunazoj.pdfIn PDF document text
    • http://www.cddfct.com/up_files/file/dupaxudutibikuderasejino.pdfIn PDF document text
    • http://tbvshungviet.com/upload/files/luvereridebemivokebojewo.pdfIn PDF document text
    • https://lotte-ppta.net/beta/assets/file/16070300387.pdfIn PDF document text
    • http://www.swaving-stalinrichting.nl/ckfinder/userfiles/files/fibibenipudalofixotege.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1621fa2d09d441---24392447428.pdfIn PDF document text
    • http://myappartement.de/web/editor/files/gafosonilod.pdfIn PDF document text
    • http://www.eau-msu.ru/ckfinder/userfiles/files/buleloxasosuvowonun.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/747cce338ce14c8c4bcd7ad9cb4b79d2/tuwasijevepi.pdfIn PDF document text
    • https://qeyeoptical.com/ckeditor/ckfinder/userfiles/files/41869021660.pdfIn PDF document text
    • http://elitakhealing.com/ckfinder/userfiles/files/9697779805.pdfIn PDF document text
    • https://turdv.ru/SITE/files/editor/file/bivizaziwodidivexe.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/97210005622.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/64368489825.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1620ab3493f8e8---96176466258.pdfIn PDF document text
    • http://asupuro.com/upload/save_image/files/miteruwomewut.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16205fd394ec52---15643042744.pdfIn PDF document text
    • https://bibonatura.com/ckfinder/userfiles/files/xutizel.pdfIn PDF document text
    • https://fundoohairstyles.com/hairstyler/images/file/52929035099.pdfIn PDF document text
    • https://777mto.com/contents/files/sitewijarejozikor.pdfIn PDF document text
    • http://actinq.nl/upload/file/loluxonap.pdfIn PDF document text
    • http://www.veslovani-vsb.cz/soubory/file/99092568385.pdfIn PDF document text
    • http://gonganmi.com/userfiles/file/38721211705.pdfIn PDF document text
    • https://atahca.pt/atahca_gestor/kcfinder/upload/files/nukuberaderutufekipaneken.pdfIn PDF document text
    • http://sevimticaret.net/userfiles/file/73922598305.pdfIn PDF document text
    • https://projekt-lesen.de/userfiles/file/zaxusivog.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=kitchenaid+classic+plus+owner%27s+manualPDF 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
    +2 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36AA4 10992 bytes
SHA-256: 0eeefe7313348a01efb1d675586743ff92130a037ef98b8dba2da9c39bb61c1a
font_01_sfnt_off0003840e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3840E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00039b28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39B28 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_03_sfnt_off0003b10c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B10C 18112 bytes
SHA-256: bff96c097bb78b89827acb80237acb8102bce16d62bc1b76cd48bf25c072062a