Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6f95af9cecabaf…

MALICIOUS

PDF

478.2 KB Created: 2022-03-28 04:58:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 865ea48cdadbeb4d81a5a1b1b5e3b2b4 SHA-1: 1a9c33bc2107e289f9b7b8b37d4b26418852a985 SHA-256: ca6f95af9cecabafdac76bbecf10f55f171b866babf7af3be3c9025215a6e0e4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5472

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://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/n7fih1p9e4193a7r8kdkqp9mv6/samixusitef.pdf In PDF document text
    • http://alacarte-husum.de/userfiles/file/gizawi.pdfIn PDF document text
    • http://vipforiraq.com/userfiles/files/segabefugori.pdfIn PDF document text
    • http://dedanskecasinoer.dk/userfiles/file/nidekoxuguv.pdfIn PDF document text
    • http://1088.net.vn/userfiles/file/75553770235.pdfIn PDF document text
    • http://www.waheedullahauto.ae/admin/kcfinder/upload/files/85043304443.pdfIn PDF document text
    • http://cobmedia.hu/include/lolufenanuxag.pdfIn PDF document text
    • http://bulongvungtau.com/media/ftp/file/mozosevigavasedij.pdfIn PDF document text
    • https://www.cuadernosmanchegos.com/panel/cuadrodemandos/assets/ckeditor/kcfinder/upload/files/74859251398.pdfIn PDF document text
    • https://igmof.com/admin/js/kcfinder/upload/web_file_ig_1/files/26709039906.pdfIn PDF document text
    • https://www.camaragranada.org/administracion/kcfinder/upload/files/73677592631.pdfIn PDF document text
    • https://happycpdl.com/backend/web/kcfinder/upload/files/jilonebazalilobaziw.pdfIn PDF document text
    • https://mail.insetclean.com.br/kcfinder/upload/files/43165731731.pdfIn PDF document text
    • https://jkmart.net/FCKFiles/File/46333273242.pdfIn PDF document text
    • https://weishinclinic.com/uploads/files/202202152354389652.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/162010726b57ba---13888895090.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/88332187065.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/d68qefsqr5eiffcgs1c95t3oon/rorubabozozaf.pdfIn PDF document text
    • https://textmakareknutsson.se/upload/image/76491600135.pdfIn PDF document text
    • https://russiandance.ru/frontend/web/js/kcfinder/upload/files/37823607709.pdfIn PDF document text
    • http://cristal-in.fr/userfiles/file/33838335866.pdfIn PDF document text
    • http://associazionemillesogni.it/userfiles/files/xotamerizizob.pdfIn PDF document text
    • https://www.marmaclbd.com/assets/ckeditor/kcfinder/upload/files/valefejababim.pdfIn PDF document text
    • http://vdi.vn/userfiles/file/10084834720.pdfIn PDF document text
    • http://gerastar.com/userfiles/file/71486465044.pdfIn PDF document text
    • http://remproekt-m.ru/admin/ckfinder/userfiles/files/27224820798.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/957085f5bb52dd414caa95d9b7b749ab/sigapotemibewidodoko.pdfIn PDF document text
    • http://www.chestheart.org/assets/ckeditor/kcfinder/upload/files/90216852183.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fde8797ce56---wurumitozomifawalogaf.pdfIn PDF document text
    • http://3m18.com/images/editor/files/52073168279.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/48835749977.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=ps4+best+selling+gamesPDF link annotation
    • http://nahar-bd.com/assets/ckeditor/kcfinder/upload/files/xujadunibasaxesen.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_off000709cd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000709cd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000709cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709CD 18484 bytes
SHA-256: 999168f1feadd23195839027cb46cb129f60b24e4869e9fd5f3728c4262cbff7
font_01_sfnt_off00073ad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AD9 10452 bytes
SHA-256: 253e99c14c997884155455444e79e5eb94c25034795f6383be587475cba59120
font_02_sfnt_off00075298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75298 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9