Malicious PDF — malware analysis report

Static analysis result for SHA-256 478b25356e599ef4…

MALICIOUS

PDF

485.7 KB Created: 2022-03-10 13:01:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 78840f4c13afa0b4fbe920a7ccc9df59 SHA-1: 3e44cc4ef87f7c18132a5ce4a1929fd72ad2ed95 SHA-256: 478b25356e599ef44782b8ed5f3e96f6998278c6395b8b58acbef471cfd46f7e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4545

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=birthday+movie+kannada+songs PDF link annotation
    • https://mro.hockeymro.ca/docs/file/10074356698.pdfIn PDF document text
    • https://boleto.serveragbr.com/datamont/userfiles/file/64505042867.pdfIn PDF document text
    • http://mwbright.com/upload_fck/file/2022-2-20/20220220144820823375.pdfIn PDF document text
    • http://becucci.it/userfiles/files/kijufel.pdfIn PDF document text
    • http://thecpg.org/kcfinder/upload/files/dezaf.pdfIn PDF document text
    • https://supermagnum-bg.com/userfiles/file/likinutes.pdfIn PDF document text
    • http://duonglaohanoi.com/userfiles/file/45998992910.pdfIn PDF document text
    • https://esperanzadeavila.com/fotos/file/jezubig.pdfIn PDF document text
    • http://dothimau.vn/kcfinder/upload/files/92453447030.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620e8aee4f21b---86833101366.pdfIn PDF document text
    • http://omonetach.pl/foto/ilustracje/file/mogadewalaxemawozapotuva.pdfIn PDF document text
    • https://infracsap.hu/files/file/bisebigupurekurezinepefe.pdfIn PDF document text
    • http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/18262203195.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622986e7b62a1---40350858537.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/bachviet/20220220/file/mosit.pdfIn PDF document text
    • http://gestaocipa.com/public_html/Imagens/file/60762671791.pdfIn PDF document text
    • https://ssea2.deegbesprofessionalcare.nl/files/File/51647096753.pdfIn PDF document text
    • https://wilgekrans.com/admin/user_files/files/nujedu.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/36069170796.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/ruliwiteledafe.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/vajoxigenazikaxuratozijo.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fafdd608611---fexomegamatoxusakuwesogop.pdfIn PDF document text
    • https://istanajpdua.com/contents/files/sijojenu.pdfIn PDF document text
    • https://www.oabrn.org.br/2017/_ups/files/files/davasevogirupu.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fdde409c610---dabevigupaj.pdfIn PDF document text
    • http://ancient-theater.gr/media/file/ruxomogeb.pdfIn PDF document text
    • http://thanhtamgia.com/ckeditor/kcfinder/upload/files/pufivabaxixoxijoxep.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/62191704964.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00072970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72970 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0007408b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7408B 17884 bytes
SHA-256: 5b71c3c8993258089de4bdc380d0aa91fb22a5d154f565993585c8a8e3d172a5
font_02_sfnt_off00076e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E70 10976 bytes
SHA-256: 823a88334ebb8ccf279a4f1bfae0a4f0a847f0c5ae2913b97629d47618cf6493