Malicious PDF — malware analysis report

Static analysis result for SHA-256 af21719b70952d8b…

MALICIOUS

PDF

150.6 KB Created: 2022-02-03 02:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 2779934e6c95e93d86306fcca4e24d1e SHA-1: e5089a5a19f60eb9b56440d3902ee7fc08edd255 SHA-256: af21719b70952d8b90a237ae9847ea06aa13e0888f70bab85d0cbd596b8aa3b1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9517

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
  • 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 https://lazav.co.za/XSRYdR1H?utm_term=epic+7+azmakalis+guide+reddit PDF link annotation
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161afbe3870079---megalawovelozabar.pdfIn PDF document text
    • http://cheliabinsk.realxenon.ru/uploads/files/67733481478.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/45673936844.pdfIn PDF document text
    • http://nbc.ua/design/pic/file/gepexotapumafunovedone.pdfIn PDF document text
    • http://smolninskayahotel.com/userfiles/file/wokire.pdfIn PDF document text
    • http://cbcom.eu/ressource/site-image/files/86403337351.pdfIn PDF document text
    • http://overcomeproblems.com/images/files/libetu.pdfIn PDF document text
    • https://pkmoscow.ru/ckfinder/userfiles/files/47032186093.pdfIn PDF document text
    • http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/22768167585.pdfIn PDF document text
    • http://honderhotel.com/UploadFiles/FCKeditor/20211011153307.pdfIn PDF document text
    • https://hotelindigha.com/FCKeditor/file/26390837751.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/novupupepenitikikiseva.pdfIn PDF document text
    • http://campbellelectronics.com/uploads/tibemuruxojelukozo.pdfIn PDF document text
    • https://phukienbep.net/media/files/1269035209.pdfIn PDF document text
    • https://akconta.com/uploads/files/39685110009.pdfIn PDF document text
    • http://seibyou-koujien.com/files/files/64384859238.pdfIn PDF document text
    • https://markiza-trade.ru/admin/ckfinder/userfiles/files/41109068838.pdfIn PDF document text
    • https://kapefashion.com/files/files/90156968132.pdfIn PDF document text
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/ifvepji9ba11tgvrenequ0tlh9/fuvok.pdfIn PDF document text
    • https://mcsfood.com/images/file/80012533934.pdfIn PDF document text
    • https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/pusilijewiwoxe.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/60422029102.pdfIn PDF document text
    • https://cpaf.gdmnw.com/kcfinder/upload/files/kewazetogewemexuvoluk.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/gudemexakuno.pdfIn PDF document text
    • https://treasurehunterdetectors.solar-ovens.net/ckfinder/userfiles/files/wugavopiwigogatuloma.pdfIn PDF document text
    • http://uniroll.pl/user_images/file/8309040440.pdfIn PDF document text
    • https://arrad.ch/modules/ck/ckfinder/userfiles/files/vetagag.pdfIn PDF document text
    • http://sieuthihatgiong.vn/webroot/img/files/49376931351.pdfIn PDF document text
    • https://marwaautorepair.com/nbloom/fckuploads/file/nezumarokax.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610ea87be8509---kukiwoj.pdfIn PDF document text
    • http://www.poliklinika-hb.cz/userfiles/file/50840250574.pdfIn PDF document text
    • http://dh-life.com/ckfinder/userfiles/files/tuterisijowejokapaxiximaf.pdfIn PDF document text
    • http://villkasz.hu/editor_up/kugifineg.pdfIn PDF document text
    • https://highendteen.com/userfiles/files/78988602201.pdfIn PDF document text
    • http://timandlor.com/userfiles/file/81346448499.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_off0001ec24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EC24 10916 bytes
SHA-256: 71e7fe67c744513ac1daa4cc52d5cebd014cd501ecfecc44645d925be68ca084
font_01_sfnt_off00020563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20563 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00021c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21C7E 17396 bytes
SHA-256: ee95ce7799b5535ee5a53e39fa700d96fd6ad71ce153a8cac0384aad145d73bb