Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df9c3c3588bfc0e…

MALICIOUS

PDF

361.1 KB Created: 2022-03-23 19:51:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 168e8ec4e64dafbc00f0c20a8cb43adb SHA-1: b5b651fb78d419aae52d9a2be17713bce48496ff SHA-256: 6df9c3c3588bfc0e5aff86f74b7e4988d8421d5ddf143bf4591b2d56fef6d0de
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mifuj.co.za/XSRYdR1H?utm_term=101+okey+indir+gezginler PDF link annotation
    • http://sitarofindiamd.com/userfiles/file/pedijuzifabaniluroma.pdfIn PDF document text
    • http://dep14kirov.ru/userfiles/file/87768067318.pdfIn PDF document text
    • http://auto-ecole-carnot.communication-pro.fr/public/1218/contenu/file/50764925659.pdfIn PDF document text
    • http://windowsplusllc.com/ckfinder/userfiles/files/sunede.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1621c77152e24f---sadiwuja.pdfIn PDF document text
    • http://lahma.pl/_u/userfiles/file/mosato.pdfIn PDF document text
    • http://exekuce-majetku.cz/kcfinder/upload/files/1298129114.pdfIn PDF document text
    • https://hokusui.co.jp/hsk/wp-content/plugins/ckeditor-for-wordpress/kcfinder/upload/files/vanilesowiwoxuton.pdfIn PDF document text
    • https://bloodyofficeadmin.underguide.com/upload/userfiles/file/12347998219.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1620d79f4b6d7b---18424431101.pdfIn PDF document text
    • https://congthuonghotel.vn/app/webroot/files/images/pages/files/rasobemi.pdfIn PDF document text
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/4nlsaibck4kokfp3rafa710k0a/tijezi.pdfIn PDF document text
    • http://poslovniimenik.net/firme_data/files/17727497905.pdfIn PDF document text
    • http://dblbtech.com/userfiles/file/28421255202.pdfIn PDF document text
    • http://www.plavanikojencupraha.cz/upload/files/66359736507.pdfIn PDF document text
    • http://nccpindia.org/ckeditor/kcfinder/upload/files/rowivuperifurota.pdfIn PDF document text
    • http://haohanlegend.com/Uploadfiles/files/kakibel.pdfIn PDF document text
    • https://designsdubaiukfashion.com/userfiles/file/86697982062.pdfIn PDF document text
    • http://www.cbt-trans.eu/upload/files/86389193372.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/cc183fe02d3c91b7951009741ff5d8b5/gunupedelixatumewukegones.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/k8c54ofe80r64pbf542eehffb3/7979548084.pdfIn PDF document text
    • https://www.kazaviaspas.kz/app/webroot/js/kcfinder/upload/files/kerigirovafezogenexipoba.pdfIn PDF document text
    • http://usairsprings.com/userfiles/file/19637193413.pdfIn PDF document text
    • https://imaggu.com/ci/userfiles/files/54158074818.pdfIn PDF document text
    • http://www.socialinvestment.eu/templateEditor/kcfinder/upload/files/loponotifewabutubogame.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16235bbd24c7bb---45747079709.pdfIn PDF document text
    • http://zamel2.pl/userfiles/file/xiginimiv.pdfIn PDF document text
    • https://listino.sopar.com/img/file/20633463539.pdfIn PDF document text
    • http://farmina.ru/uploads/files/92032577808.pdfIn PDF document text
    • http://suchanekstomatolog.pl/files/file/9053735758.pdfIn PDF document text
    • http://uniskycn.com/userfiles/file/LianMeng202203070752334350.pdfIn PDF document text
    • http://archiprojektai.lt/app/webroot/uploads/userfiles/files/kotulaparowiparusutijaj.pdfIn PDF document text
    • http://aventurinproject.tesztweboldal.com/uploads/files/95477855800.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_off000537b7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000537b7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000537b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x537B7 10336 bytes
SHA-256: b7ca84cbc112861442cee73af72f7d11ae3645eeef8b9fa3a6466b674c25bee6
font_01_sfnt_off00054edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EDF 18364 bytes
SHA-256: bbc93f9da1f25865bd48475a6bcded867fcd6335c4658300978721f0d87233bc
font_02_sfnt_off00057c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C66 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9