Malicious PDF — malware analysis report

Static analysis result for SHA-256 8757bc15f6efea46…

MALICIOUS

PDF

305.6 KB Created: 2022-03-17 01:50:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 75548097216be9e694aeccdf4ef4b9ef SHA-1: 2c7a8028ad8d2cf81dec51208f83f253984f3605 SHA-256: 8757bc15f6efea4610481978b094c370f78ded447a8dcbea1b6f745a976d7259
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7501

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://ragaz.co.za/XSRYdR1H?utm_term=linux+command+line+cheat+sheet+sans PDF link annotation
    • http://vankouwenenmastop.nl/UserFiles/file/lasutugoku.pdfIn PDF document text
    • https://haruhonpo.com/upload/haruhonpo/files/fesafarofi.pdfIn PDF document text
    • http://perevodvnegiloifond.ru/pict/file/89104478783.pdfIn PDF document text
    • http://chandox.yun2u.com/upload/files/vegifikotimunelupetuxev.pdfIn PDF document text
    • https://klubkanine.com/home/klub/public_html/ckfinder/userfiles/files/vuxibekoji.pdfIn PDF document text
    • http://www.grupotresa.com/uploads/kcfinder/upload/files/xabisak.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/52076468221.pdfIn PDF document text
    • https://systematix.pl/userfiles/file/24587348985.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/5fc16e8787c7cb0ada075825bc0d82e8/69759721726.pdfIn PDF document text
    • http://effekt-film.de/files/file/44589396220.pdfIn PDF document text
    • http://redagowanieprac.net/Upload/file/pobumiserutebanebi.pdfIn PDF document text
    • http://xdata.pl/app/webroot/img/ckf/files/61275081741.pdfIn PDF document text
    • http://ndemal.com/publish/page/file/pekoxosagebixor.pdfIn PDF document text
    • http://www.radanhorse.com/resource/files/venaxoxe.pdfIn PDF document text
    • http://creacionesfullpack.com/kcfinder/upload/files/xanut.pdfIn PDF document text
    • http://borsasetelsis.cat/admin/kcfinder/upload/files/javabenifenulexesomujitob.pdfIn PDF document text
    • http://brothersconsultingllc.com/kcfinder/upload/files/nipab.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161fd0ccc24fda---noxajoguvuwifeferawu.pdfIn PDF document text
    • https://cribpointonline.org/cribpointonline/userimages/file/34787059726.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209487681886---tagupid.pdfIn PDF document text
    • http://farashimirooz.com/files/wonaxepidituzijezumawu.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/59477945460.pdfIn PDF document text
    • http://gns3.swiz.eu/files/editor/856894104.pdfIn PDF document text
    • http://act4urplanet.eu/webroot/upload/files/xodowixaderilibikirado.pdfIn PDF document text
    • https://www.gpe-el.pro/ckfinder/userfiles/files/37910096415.pdfIn PDF document text
    • https://ambient-interier.cz/files/files/69666312400.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/d770d02f5631aed5db77713470fb011c/60673237170.pdfIn PDF document text
    • https://comobrew.com/newsite/images/user_uploads/file/tejikusulitazesalarosa.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_off00045537.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00045537.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45537 10692 bytes
SHA-256: d8d2a2720c7c39f3f338570282ed020ec8166cec28dac7b7c5b0f1e740653eed
font_01_sfnt_off00046d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46D8B 19228 bytes
SHA-256: b942d19053967cfc2248f71d3ae892fceed3cf56db7f9e77b256f819caddf301
font_02_sfnt_off00049e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E90 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9