Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f31841dbd6f5ff9…

MALICIOUS

PDF

354.2 KB Created: 2022-04-04 08:23:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 540c001609cb88c4ff354a50f4a341c9 SHA-1: a59a1c6b3f62513537ce873a444251b74bb6ab6f SHA-256: 5f31841dbd6f5ff9da82b3f44c9b778968171d0791992845edbe721cd8d75957
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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://ragaz.co.za/XSRYdR1H?utm_term=plan+charpente+bois+1+pente PDF link annotation
    • https://fontini-rozetki.su/kcfinder/upload/files/67987944958.pdfIn PDF document text
    • http://biznesfishki.ru/files/userfiles/files/pafuredanedujobakasaxog.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/wizixikifozinegefabefub.pdfIn PDF document text
    • http://denetimmusavirlik.com/userfiles/file/74134563726.pdfIn PDF document text
    • http://www.alex-vasilkov.ru/images/wisdom/file/wisagerotuwokafa.pdfIn PDF document text
    • http://holdemigny.fr/ckfinder/userfiles/files/49568985623.pdfIn PDF document text
    • http://karaokejdi.com/ckfinder/core/connector/php/upload/files/vozuvixajagavodivilu.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1623ae8ea16402---lawemenejimumubejaranomim.pdfIn PDF document text
    • http://historia-bfured.hu/userfiles/file/figukiva.pdfIn PDF document text
    • http://vipnjl.com/userfiles/files/wepinidemur.pdfIn PDF document text
    • http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/60668735037.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/56396519170.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1622f431b46304---60996361856.pdfIn PDF document text
    • http://lidaoxc.com/upload/files/rabujofijomoporo.pdfIn PDF document text
    • https://canionglobal.com/FCKeditor/file/luzabafekun.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20220209154504768.pdfIn PDF document text
    • http://martonfogtechnika.hu/admin/kcfinder/upload/files/tibuwolozutaxag.pdfIn PDF document text
    • http://camara.acessoainformacao.org/uploads/ckfinder/files/suzazoxebuwilujij.pdfIn PDF document text
    • https://yapluka-services.fr/userfiles/file/bejodegewenuvizizu.pdfIn PDF document text
    • http://csim.jp/ckeditor/uploads/files/56471383809.pdfIn PDF document text
    • https://mondoaudio.it/img/uploaded/file/bufoxogefefojifasizejo.pdfIn PDF document text
    • https://sportsfeats.com/app/webroot/js/kcfinder/upload/files/folakofi.pdfIn PDF document text
    • http://jhdljz.com/userfiles/file/1647848588.pdfIn PDF document text
    • http://webbuilders.com/files/file/fanutodilotefimarawulo.pdfIn PDF document text
    • http://piazzademarini3ge.com/userfiles/files/vikebadote.pdfIn PDF document text
    • https://gosselindesign.com/images/from_fckeditor/fichiers/25259080435.pdfIn PDF document text
    • http://kco.su/userfiles/file/62979111949.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216834e59610---lomijuja.pdfIn PDF document text
    • http://sieuthimaynhapkhau.com/upload/files/tivodolajofadepuzomikogax.pdfIn PDF document text
    • http://anduong-nhatthanh.com/uploads/news_file/41831078761.pdfIn PDF document text
    • http://asbu.net/uploads/FCK_files/file/xedunexukiduxopopin.pdfIn PDF document text
    • https://auditorescr.com/ckfinder/userfiles/files/41165722372.pdfIn PDF document text
    • http://consulcongress.it/uploads/assets/file/rawoxelosu.pdfIn PDF document text
    • https://oceanflowerhotel.com/uploads/image/files/24785260464.pdfIn PDF document text
    • http://kramek16.cz/userfiles/files/ralus.pdfIn PDF document text
    • http://medicareclinichowrah.net/faboriginelist-braj/userfiles/file/xuvexiganivurizeduved.pdfIn PDF document text
    • http://intelibud.net/media/files_manager/files/lexumilepuvozesopeni.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/66407655652.pdfIn PDF document text
    • http://status-go.net/gfx/userfiles/files/dafaliposo.pdfIn PDF document text
    • http://discus-rus.ru/upl/file/82303652173.pdfIn PDF document text
    • http://xn--brneneskontor-landsforening-b0c.dk/userfiles/file/25463987354.pdfIn PDF document text
    • http://elliptical-trainers.ru/ckfinder/userfiles/files/pifasofewivefufesiv.pdfIn PDF document text
    • http://tostonet.cl/ckfinder/userfiles/files/romunaluwex.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/24622318178.pdfIn PDF document text
    • https://kccegis.com/upfiles/content/file/20220227171615.pdfIn PDF document text
    • https://unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/kazunopenelapibetux.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
    +5 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51447 10664 bytes
SHA-256: 1333422ea9db2597d8ebf9faa88876a9b11dcf2833e65b0dfe4b7fce9be7569b
font_01_sfnt_off00052c74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C74 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0005448b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5448B 20212 bytes
SHA-256: 53ca231bc31285244f65f2d0c7511a7aa672a55809522b2fcf606265570ad21d