Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dab9ff748f8c8f…

MALICIOUS

PDF

85.5 KB Created: 2021-08-17 21:42:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: d9253effcb207f3ee071363d32f32a21 SHA-1: 77badc2fa44dc2a48b79f0d284fec010c3852acf SHA-256: c5dab9ff748f8c8f8b17216a4c8940a12266e4901422e2665d6916d08184f3cd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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 http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c495ee0a9ce---vazodijewusisoji.pdf In PDF document text
    • http://zaun-produzent.de/userfiles/file/lulegaj.pdfIn PDF document text
    • https://taechoclub.com/FileData/ckfinder/files/20210731_834B040CF62666AE.pdfIn PDF document text
    • http://pozitron-s.ru/userfiles/file/pavosolilezade.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/hhq2mbips173s9ck9tj5lpfoi0/venivaditofugar.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871293631e5---21216270075.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/b9fa8d7315553bb93799556cfbb462ed/51775963499.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/6ee52bc024d359e2a5f193fd9b9b3b72/nurula.pdfIn PDF document text
    • http://laduses.nl/image/file/mogofevugebamegosuvudoli.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b9c65f1d6---befotuzexefizetepugowivi.pdfIn PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/f8353620e008fd1c2029537d14d86f25/92129714895.pdfIn PDF document text
    • https://latework.cz/soubory/xexoxekusitojavigenenim.pdfIn PDF document text
    • https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/6c50207139e3004eaf20c0a37a2505ae/77517523410.pdfIn PDF document text
    • http://sonnenheizung.ch/fckeditor/editor/images/file/20163261466.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/92022035774.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611a68e2249fe---25412989014.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/fab75860a62e80807118feaab5c56488/komibebomapazosev.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/2be46d412659531aba58a661738e2bdf/73206859977.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/sb0mtffsf2i6grote7l2v6g35j/kejedozituw.pdfIn PDF document text
    • https://nusbetaja2.com/contents//files/vikazijikejerome.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a42723eab78---pajasurudawutanipalitinu.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/0bebd8ee9a9201584d8ee1b858b20eb9/83092238930.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/9309891b3ce1a25a0a8767897d2a4b8c/67008836991.pdfIn PDF document text
    • https://aradovan.com/userfiles/file/vofananapuvixab.pdfIn PDF document text
    • http://armiikrajowej36.pl/public/upload/ckfinder//userfiles/files/59722294084.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=ariana+grande+my+everything+album+download+deviantartPDF link annotation
    • 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
    • https://www.deviantart.com/immacrazyweirdo/art/...SepIn 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_off0000e350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE350 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB67 11016 bytes
SHA-256: ff7cbe04874983624f87b2e388cadf10bfc3b6c14e68dc0fb0c33554fd6a898c
font_02_sfnt_off00011496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11496 19152 bytes
SHA-256: 4bff92ac869c1e3d3831a95f00b8805514f26a10b89b1c2bc7a7cc9f849bf7b6