Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d86302e2cc525d8…

MALICIOUS

PDF

300.9 KB Created: 2022-03-26 07:10:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: c23319f93f421b25d98b8ece60bfb5fe SHA-1: 0c58b9a464005eff9ac46b9f2896f6f4658123fc SHA-256: 5d86302e2cc525d8bfb8034c3d30bbec64e12b392875ee964fbe6a93ac067d28
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8407

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://yubit.co.za/XSRYdR1H?utm_term=willy+wonka+and+the+chocolate+factory+torrent PDF link annotation
    • http://salda.lt/saldus/kcfinder/upload/files/22914286564.pdfIn PDF document text
    • http://techcessgroups.com/userfiles/file/nusotixadilopixivababe.pdfIn PDF document text
    • https://alzubidi.com/userfiles/files/79512792478.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620a920ea45be---rokoba.pdfIn PDF document text
    • http://www.crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/50009107632.pdfIn PDF document text
    • https://pacantioquia.org/aym_image/files/53367725096.pdfIn PDF document text
    • https://vzglavniki.net/data/file/wifusugavupexowumal.pdfIn PDF document text
    • http://aotmoo.com/uploadfile/files/20220201_231111.pdfIn PDF document text
    • https://hippodrome-compiegne.fr/www/uploads/file/nobajikaturinav.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/8b12de8b84638e36ca1d945ac21bbbcb/wudidezapiterijovub.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16237375053170---60404734504.pdfIn PDF document text
    • https://073741256.com/uploads/files/202202222006326309.pdfIn PDF document text
    • http://gerastar.com/userfiles/file/judoxogogebi.pdfIn PDF document text
    • https://www.crosstownnews.in/kcfinder/upload/files/39960665706.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16205fbe7cc0cb---94136462037.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/71f330a49c76aa533bf25ae5874f252a/zozan.pdfIn PDF document text
    • http://archiwum.wyryki.eu/admin/ckfinder/userfiles/files/62138248241.pdfIn PDF document text
    • http://xn--jt2b56wn0ap2a.com/upload/file/202202241931289440.pdfIn PDF document text
    • http://yacpa.org/yacpafiles/file/65243046432.pdfIn PDF document text
    • https://bk.elbasyacademy.kz/vendor/admin/kcfinder/upload/files/71038265934.pdfIn PDF document text
    • http://sklenicky-obchod.cz/web/admin/fckeditor/userfiles/file/lanuwamamagalovajozisipav.pdfIn PDF document text
    • http://quickwaycargo.com/userfiles/file/83189154337.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43891 23996 bytes
SHA-256: 4a179514e315593d8cf655aceb800769ceb5c1229c3e2c2f09e6dd875590006b
font_01_sfnt_off00047541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47541 10692 bytes
SHA-256: 10f242ef527ec1ab29fbbde309ccc2415086a66684146b5f6176635088678aab
font_02_sfnt_off00048dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DBC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9