Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8852a9b54106fd…

MALICIOUS

PDF

393.0 KB Created: 2022-03-05 23:33:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 5b00b53f4f213bafb3a39151bcfbc21b SHA-1: 09a7e89acaeb1c259b17c650687d2a95c4cd64dc SHA-256: 5d8852a9b54106fd94f9079d21220c212e14db72b205819a9a8cee97f1e686d8
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6156

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://fecuq.co.za/XSRYdR1H?utm_term=most+bones+are+formed+by+intramembranous+ossification PDF link annotation
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/161f8d4f42ac6a---palonedibuj.pdfIn PDF document text
    • http://avto-sova.ru/upload/files/13174007660.pdfIn PDF document text
    • http://unicaconsultoriarh.com/images/files/fulumiwezopujeza.pdfIn PDF document text
    • http://congnghieptauthuyvietnam.vn/upload/files/75433434073.pdfIn PDF document text
    • https://escritacontabilidade.net/fotos/news/file/9846105395.pdfIn PDF document text
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1620206fe3658f---11603551637.pdfIn PDF document text
    • http://darangyi.com/userData/board/file/munixa.pdfIn PDF document text
    • https://maintogelonline2.com/contents/files/gesokusigalopu.pdfIn PDF document text
    • https://tenfci.net/userfiles/file/sovozotipazodeliwinusu.pdfIn PDF document text
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16207ac94065cb---madokinaxovokepuximegubi.pdfIn PDF document text
    • https://doradca-bankowy.pl/files/files/46827629587.pdfIn PDF document text
    • http://dilimkebab.com/userfiles/file/fedumoniwebi.pdfIn PDF document text
    • http://bandodesign.com/assets/ckeditor/kcfinder/upload/files/94312745773.pdfIn PDF document text
    • http://bulongvungtau.com/media/ftp/file/34636915935.pdfIn PDF document text
    • http://www.acs-pack.fr/kcfinder/upload/files/50670595791.pdfIn PDF document text
    • https://villagrancanaria.bookipro.com/js/libs/ckeditor/plugins/kcfinder/upload/files/dapuvo.pdfIn PDF document text
    • https://www.houseofwax.cz/kcfinder/upload/files/vefodolatufenizetugek.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620257d756c9b---jelodofevekuwanus.pdfIn PDF document text
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/kobigufekokawuforefixosep.pdfIn PDF document text
    • http://eidatlantique.antevox.fr/UserFiles/medias/bolanazofawiwe.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/wewema.pdfIn PDF document text
    • http://lohoithaiduong.com/uploads/files/zenikomulupi.pdfIn PDF document text
    • http://studiogallerani.it/userfiles/files/92288109602.pdfIn PDF document text
    • http://laguna.piyawatgroup.com/images/files/feratubogibotirufo.pdfIn PDF document text
    • http://aescantabria.es/upload/fckeditor/file///22393487583.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/1683608725.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///gemanerixulototaleva.pdfIn PDF document text
    • https://paymentor.nl/uploads/file/22363024590.pdfIn PDF document text
    • https://cevhertemizlik.com/userfiles/files/wekagajalox.pdfIn PDF document text
    • https://acv-verdun.fr/kcfinder/upload/files/bokorezezemetovidodomas.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_off0005ae9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE9D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005c5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5B8 20272 bytes
SHA-256: b6cb3bd0a14d0a05da42550c0b87056bfe190dfba103dc6a69af6131ba9d4677
font_02_sfnt_off0005fad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAD8 10940 bytes
SHA-256: da81cc04f142650e004a39518a51813583caf32da3adfb5a4791e863769f44a7