Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2f5e0b5ac58979…

MALICIOUS

PDF

164.6 KB Created: 2022-03-22 15:13:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 4cbfb89f4d51fbd325c76ce250dfcf85 SHA-1: 3f0c4cb9f3ebd2e1fd2e05ccd2513590841dc04c SHA-256: af2f5e0b5ac589790fb6514cc80c29d2c9ef8045cceba6934c19002529174bce
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8979

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
  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=tecnica+de+faust+modificada+fundamento PDF link annotation
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1621b77148d9c5---62765556321.pdfIn PDF document text
    • http://orosweb.hu/userfiles/file/betumorerefekoxexipete.pdfIn PDF document text
    • https://www.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/3025990636.pdfIn PDF document text
    • http://www.glutec.it/_admin/kcfinder/upload/files/20813655515.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/34484606375.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1621ee3cb6daf3---gusonovubo.pdfIn PDF document text
    • http://fsanaq.com/upload/file/220204085145370697gmkdyfbrigp5.pdfIn PDF document text
    • http://stoffelhoevetegelkachels.nl/userimg/file/4029343495.pdfIn PDF document text
    • http://yeke.com.tr/public/kcfinder/upload/files/87814248254.pdfIn PDF document text
    • http://alseera.com/admin/kcfinder/upload/files/13655708053.pdfIn PDF document text
    • http://humanconsulting.cz/media/file/1391954867.pdfIn PDF document text
    • http://vietcem.vn/public/default/ckeditor/files/pafowupofutipisanexitit.pdfIn PDF document text
    • http://nouansporteg.com/userfiles/files/3906787570.pdfIn PDF document text
    • https://northwoodsinnsuites.com/nbloom/fckuploads/file/pukikozabupesigibibudaz.pdfIn PDF document text
    • http://greenlasthousing.com/admin/kcfinder/upload/files/zibitesezuvikamamov.pdfIn PDF document text
    • http://worldtrip-eng.total-flame.com/application/views/blog/userfiles/file/baraxiduduzuniwosavosu.pdfIn PDF document text
    • https://gheysenreal.com/uploads/files/wunijoje.pdfIn PDF document text
    • https://www.insideaccess.lk/assets/js/kcfinder/upload/files/58824633221.pdfIn PDF document text
    • https://simbhaolipower.com/images/file/57187502376.pdfIn PDF document text
    • http://fioredda.com/userfiles/files/ridagave.pdfIn PDF document text
    • http://makassitools.com/userfiles/file///3959547487.pdfIn PDF document text
    • http://autodilygood.cz/files/file/75353424403.pdfIn PDF document text
    • http://goplayer.net/fil/ckFiles/files/ximifota.pdfIn PDF document text
    • https://www.area-tlc.com/public/ckfinder/userfiles/files/bijom.pdfIn PDF document text
    • https://www.natursany.com/ckfinder/userfiles/files/gururamalixobubodotifad.pdfIn PDF document text
    • https://x-leather.com/radsportfiles/file/50863325298.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161fa674c20a4f---77917867223.pdfIn PDF document text
    • https://www.nutfruit.org/js/admin/ckeditor/plugins/kcfinder/upload/files/xineligunebenipazujigarug.pdfIn PDF document text
    • http://bourgogne.annuaire-regional.com/ckfinder/userfiles/files/36613932.pdfIn PDF document text
    • https://zebcom.in/userfiles/file/gorimukasoropibabukere.pdfIn PDF document text
    • http://shukokai-voves.fr/userfiles/file/dimezu.pdfIn PDF document text
    • http://strahyi.ru/images/file/26639357968.pdfIn PDF document text
    • http://polesprogettazioni.com/userfiles/files/wekisurivuwosusegaka.pdfIn PDF document text
    • http://mebelhotel.ru/images/news/file/94714225326.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/senoladivirari.pdfIn PDF document text
    • https://leresto-niort.fr/images/userfiles/files/zepiwunazejemofat.pdfIn PDF document text
    • http://whatcanidoforyou.eu/publish/file/63014616039.pdfIn PDF document text
    • http://naturptica.ru/upload/files/nevusowoliwegujovikuj.pdfIn PDF document text
    • https://t2sc.me/userfiles/70631427063.pdfIn PDF document text
    • https://htkvn.vn/public/admin/plugins/kcfinder/upload/files/162799683.pdfIn PDF document text
    • http://old.muzeum-ak.pl/newsysn/kcfinder/upload/files/fufenabizirirebirodel.pdfIn PDF document text
    • http://netpost.vn/upload/userfiles/files/nadepebivisawivebofofuxu.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
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00021f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21F71 20516 bytes
SHA-256: 41a3537a18cd94a45f13d3594b7db7291174c6e6fa0f07802eb5f3c51a929cfa
font_01_sfnt_off000253f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x253F2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00026b12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26B12 10552 bytes
SHA-256: 6bdd0ede41e23efff08e2811120ebaeffba8972f2b096db04106d02e2de0eda9

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