Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c67e1a1c52f4e72…

MALICIOUS

PDF

336.2 KB Created: 2022-01-25 10:54:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: e7b6b48c0a2d4a84a0d0e938edec3339 SHA-1: adf7da46ac74bdb1419ed629d7f68d104d468508 SHA-256: 6c67e1a1c52f4e72484d837d1f882716f8bd73d73bfd4a93ea41e77594dce5dd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7093

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://oniceh.ru/uplcv?utm_term=diverticulitis+idsa+guidelines PDF link annotation
    • https://gulceoyunlar.com/calisma2/files/uploads/92540038584.pdfIn PDF document text
    • http://estetycznastomatologia.pl/file/files/98178506283.pdfIn PDF document text
    • http://hyswimpool.com/userfiles/xasepisopupa.pdfIn PDF document text
    • http://sitaudit.gov.bd/assets/ckeditor/kcfinder/upload/files/77769390231.pdfIn PDF document text
    • http://thanhnhomdinhhinh.net/uploads/files/tepeketubujakipenomakoju.pdfIn PDF document text
    • https://smartcirclegroup.com/userfiles/file/fasebakura.pdfIn PDF document text
    • https://pellevah.com/upload/files/35232205377.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/6923751a53b2be2cdd3824a32a69c47a/83335829602.pdfIn PDF document text
    • https://kabelkyaobuv.sk/editor_uploads/files/xigivabemixatefalufovin.pdfIn PDF document text
    • http://chroscina.com/userfiles/file/bililozovafutitajuwedoni.pdfIn PDF document text
    • http://makesomenoise.hu/upload/file/mufidevamubebob.pdfIn PDF document text
    • https://alzubidi.com/userfiles/files/lifevumopojapujidemo.pdfIn PDF document text
    • http://soft-pro.hr/upload/datoteke/novizek.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/vezopaju.pdfIn PDF document text
    • https://mgs-on-track.com/app/webroot/userfiles/file/dodirizakitalu.pdfIn PDF document text
    • http://mazraeir.com/images/upload/files/zemamemokusobewutusumamed.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/feterelem.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/3987b94aef4c5a21dd5126a400ae595c/8063113788.pdfIn PDF document text
    • https://truyenskyt.com/upload/ckeditor/files/barirebilemabafamedar.pdfIn PDF document text
    • http://tuanayapim.com/rsm/files/tikawowomuxupaj.pdfIn PDF document text
    • http://debandhelder.nl/ckfinder/userfiles/files/85976520271.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/3dc4ba2e81af0ad35a75cfd778ea04ad/1175398943.pdfIn PDF document text
    • http://euhoca.com/js/ckfinder/userfiles/files/dedero.pdfIn PDF document text
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/3944725388.pdfIn PDF document text
    • http://glavis.biz/userfiles/file/74052461204.pdfIn PDF document text
    • https://duproject.com/uploadEditor/files/mupiv.pdfIn PDF document text
    • http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/98924291715.pdfIn PDF document text
    • http://easy-sleep24.de/shop/images/editorfiles/file/18632040185.pdfIn PDF document text
    • http://www.amis-simserhof.fr/kcfinder/upload/files/23297817204.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615839e661fd6---jezazumokitivoliz.pdfIn PDF document text
    • https://serwisnawigacji.pl/userfiles/file/xojazarivi.pdfIn PDF document text
    • http://quartierdete.fr/uploads/fckeditor/file/48983703552.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/02550f366d330d6b935e37bbd5ac41de/11661617581.pdfIn PDF document text
    • https://www.danielbarboza.com.br/v2/meuAdmin/inclusos/plugins/ckeditor/plugins/kcfinder/upload/files/93953690010.pdfIn PDF document text
    • https://sieseam.org/userfiles/files/suwuriviwonelawokerofu.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_off0004bea3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004bea3.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004bea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BEA3 16152 bytes
SHA-256: 195da95b9857c3f4591331ac15912597d6b2172c0ac1881e5315c020038e8fba
font_01_sfnt_off0004d40f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D40F 17544 bytes
SHA-256: 723be3abe1f4a3c0a122cc953affec5e5f78665aeeebc65c5811cc6d7f8548bc
font_02_sfnt_off0005023b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5023B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_03_sfnt_off000518df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x518DF 10592 bytes
SHA-256: 467ee76ba9582a1f062b0c4bcc38a7e33c1ed5107c706c892628ef65b2dc4542