Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfadbba3d1d9c5c…

MALICIOUS

PDF

298.1 KB Created: 2022-02-27 08:53:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 4d083be22b850963dbd1f3403dbf53bb SHA-1: 1592a5c8aef3e26dc6d909bb59a5ff41ecca72af SHA-256: 6dfadbba3d1d9c5c83775cc42fea31b859fee26ea66de2182f3f683993ac5e15
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6618

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=king+size+platform+bed+with+storage+white PDF link annotation
    • https://morethancars.eu/uploads/edytor/file/85915598049.pdfIn PDF document text
    • http://artdental.hu/editor_up/59360679390.pdfIn PDF document text
    • http://rydelko.eu/userfiles/file/pomilobaloxevorujag.pdfIn PDF document text
    • https://cambodiadriverservice.com/userfiles/file/lomironagijew.pdfIn PDF document text
    • https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/f3c71cc1140c2896b4649fa1b4587053/40552110190.pdfIn PDF document text
    • http://cuatudongbinhduong.net/uploads/files/35658795174.pdfIn PDF document text
    • http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/42579817524.pdfIn PDF document text
    • https://noticky.net/akce/fotky/file/xabufi.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/abcddfdd7af7de29a83b2a8f3ea18948/febilubemugukodatawuwid.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619fbab693969---59372818563.pdfIn PDF document text
    • http://nakajima-ya.com/upload/save_image/files/nagemuberiw.pdfIn PDF document text
    • http://reicar.dk/userfiles/file/84481384930.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161bb2d656d5fa---14971781669.pdfIn PDF document text
    • http://wonikqnc.com/upload/editor/file/1645258068.pdfIn PDF document text
    • https://buddhaart.in/userfiles/file/5452659496.pdfIn PDF document text
    • https://www.propertymegamart.in/admin/ckeditor/kcfinder/upload/files/68568104866.pdfIn PDF document text
    • http://xn--80aejmo0alc.xn--p1ai/ckfinder/userfiles/files/72442362178.pdfIn PDF document text
    • https://www.campacinter.com/image/upload/File/67891413800.pdfIn PDF document text
    • http://www.naturhalles.fr/fckeditor/userfiles/file/xezinafomijepofupog.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/05c6b5a0575407a8a657862c8894379d/47833986635.pdfIn PDF document text
    • https://static.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/92791251534.pdfIn PDF document text
    • http://a-aqua.fr/ressource/site-image/files/52231683609.pdfIn PDF document text
    • http://elcastillotucentrotextil.com/imagenes/contenido/files/39212105785.pdfIn PDF document text
    • http://imhkayseri.com/resimler/files/92427854294.pdfIn PDF document text
    • https://kohaz.hu/files/file/nodarasazezojukodipav.pdfIn PDF document text
    • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613af46ca7d53---xuvelazikaforobudu.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/a5196c1fb012014f5965dfe83ba5c556/33850441432.pdfIn PDF document text
    • http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202111/file/sonikafebuneto.pdfIn PDF document text
    • http://fuguchair.com/upfolder/e/files/20220227071901.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_off000436d0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000436d0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000436d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x436D0 18728 bytes
SHA-256: cf9fca63d1ffb39f8da6a725b08b8c225170c3dc3ca0560b6a7209cfdbe27acc
font_01_sfnt_off000467cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x467CB 11220 bytes
SHA-256: f21e7f029932223af5fe500fdbf5cb4bd4c5c20ff595e56c0d03fd91859c59b2
font_02_sfnt_off00048188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48188 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9