Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87a586a719186ad…

MALICIOUS

PDF

272.1 KB Created: 2022-03-01 16:16:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 58ded46aaf2395fb7f6a7e762482496e SHA-1: a2d8aa9177997a67fc6327c8e50160a76ab92e2f SHA-256: f87a586a719186ada0b7a88d9dcb0a73b0da3fd6c9244c58b443890cfbd2dc28
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://norin.co.za/XSRYdR1H?utm_term=whatsapp+for+nokia+xl+phone PDF link annotation
    • http://neogmbh.de/www/sites/default/files/userfiles/file/madiredoxuxodoveroded.pdfIn PDF document text
    • http://yoyaku.com/app/webroot/js/kcfinder/upload/files/fizudeperotobiwigesa.pdfIn PDF document text
    • http://zonatourism.com/media/ck/files/13896608101.pdfIn PDF document text
    • http://regmac.net/userfiles/files/73750949281.pdfIn PDF document text
    • http://bukitjaya88.com/kcfinder/upload/files/74747803931.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16211f3913b8b5---38555426149.pdfIn PDF document text
    • http://showplus.ae/userfiles/files/37335491497.pdfIn PDF document text
    • https://vilus.cz/userfiles/file/jawipib.pdfIn PDF document text
    • http://furasskutat.hu/admin/kcfinder/upload/files/lipabevudidojoxen.pdfIn PDF document text
    • https://soudurelauziere.ca/upload/editor/file/22469119646.pdfIn PDF document text
    • http://tdbm.vn/upload/files/5597226651.pdfIn PDF document text
    • https://numen-wow.com/userfiles/cloud/files/5294765258.pdfIn PDF document text
    • https://fiberglasssupplydepot.com/userfiles/file/nivuzukakewuroserawawud.pdfIn PDF document text
    • http://borneneskontor-landsforening.dk/userfiles/file/10354110980.pdfIn PDF document text
    • http://hardevel.com/data/files/66925739485.pdfIn PDF document text
    • http://topflexsports.com/uploads/50153267795.pdfIn PDF document text
    • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/af8a205b943820875e4fadc9b5231f50/pemewowetatuvefilewa.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/90n8h3dt19cvsh4624qpv9qpfi/dolusen.pdfIn PDF document text
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/162063513054cb---galizod.pdfIn PDF document text
    • http://4bzsoftware.com/Images_upload/files/27977458479.pdfIn PDF document text
    • http://damutech.kz/upload/2022/02files/220203172540534213ahlbn.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/wozidoxinefusupa.pdfIn PDF document text
    • http://zhongjiukeji.com/upload_fck/file/2022-2-28/20220228150703332619.pdfIn PDF document text
    • https://thomsonindia.com/userfiles/files/xibiwa.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_off0003d4cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D4CC 17536 bytes
SHA-256: 01655e7e05025cada2b22e838d64ce2bed9c4482da726aa7465d96071822ecb5
font_01_sfnt_off00040255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40255 10640 bytes
SHA-256: d0a2f212e66ea9087a26c49ace472561d6bbd4fbbfc57da5f093a95d24c2ba5e
font_02_sfnt_off00041aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41AAD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9