Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f0964700ce8054…

MALICIOUS

PDF

285.0 KB Created: 2022-02-19 04:12:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: efb4dd009cb54687de68178df4f92172 SHA-1: a45193bf0ffe05e01af5008eb19064865687f1e3 SHA-256: a4f0964700ce8054cffa54613e5396c478e9f512d1d77500f2e226927e4ee426
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7003

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://yubit.co.za/XSRYdR1H?utm_term=funke+gerber+lactostar+user+manual PDF link annotation
    • http://hb-hospital.com/file_upload/fck_upfile/file/4927741964.pdfIn PDF document text
    • http://benardoutlite.com/admin/fckeditor/fckdata/file/nopadiditej.pdfIn PDF document text
    • http://annabarons.com/files/files/57123218690.pdfIn PDF document text
    • http://noithatachau.vn/webroot/img/files/tewimiwagozugigome.pdfIn PDF document text
    • http://goansausages.com/admin/ckeditor/kcfinder/upload/files/totizonogilukus.pdfIn PDF document text
    • http://voltgroup.com.ua/assets/kcfinder/upload/files/80528072130.pdfIn PDF document text
    • https://drinkpoint.com/uploads/files/nebuxejavawaroripuxusuw.pdfIn PDF document text
    • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611deb92e1c86---91146760698.pdfIn PDF document text
    • http://phuquytravel.com/nguyenvanlinh/files/50054900616.pdfIn PDF document text
    • https://clubkdo.fr/img/pics/files/gasilovegaf.pdfIn PDF document text
    • https://esofagopisa.it/userfiles/file/78359707258.pdfIn PDF document text
    • https://kimhanh.com.vn/kcfinder/upload/files/gisozoluvarusomaxo.pdfIn PDF document text
    • http://hainescentreasia.com/images/file/65439775496.pdfIn PDF document text
    • http://klm-co.ru/foto/ck/files/24126209764.pdfIn PDF document text
    • http://ankaser.com/userfiles/file/66126252161.pdfIn PDF document text
    • http://wdnederland.nl/file/jufiwawibonanapizabuf.pdfIn PDF document text
    • https://cupanghitam.com/contents//files/77496680555.pdfIn PDF document text
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f47d8d08453---51117638909.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/1ngk94t2abvp4jvuc0do01dd0h/23454819288.pdfIn PDF document text
    • http://cc-loges.com/uploads/file/92776937856.pdfIn PDF document text
    • http://massageindex.nl/images/uploads/turinifuvijina.pdfIn PDF document text
    • http://twfindia.in/userfiles/files/jumusoforawejirug.pdfIn PDF document text
    • https://maggies-handmade.com/UserFiles/files/putawulilitikelivasum.pdfIn PDF document text
    • http://pmrs.ps/userfiles/file/mutamedusuter.pdfIn PDF document text
    • http://www.federacja.krakow.pl/uchwaly/kcfinder/upload/files/wojosegufikatezogitup.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 extracted file (font_00_sfnt_off00040500.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00040500.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40500 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00041c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C20 10788 bytes
SHA-256: 58a2c40e0ae05fe72143e80c88de708358349c03723ef0dc91dbbde68c8ca567
font_02_sfnt_off000434fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x434FD 17864 bytes
SHA-256: bcf5f85d3e777fa62368c3e7729821c40b7ac695a47adb38dae25edfec6525a6