Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b6d9546bbd6258…

MALICIOUS

PDF

302.3 KB Created: 2022-02-10 22:13:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: be6cfdab64ac04d01773d07db826b841 SHA-1: d37e5fca733bd639a86257bf60c4b89e784e4194 SHA-256: a8b6d9546bbd62585d9fa273c2d03f2f27f36de5e29c689ec7c72ac84b2924ca
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6797

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • 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://ragaz.co.za/XSRYdR1H?utm_term=preeclampsia+guidelines+nice PDF link annotation
    • http://wittymall.com/multimedia/userfiles/file/sasufalogo.pdfIn PDF document text
    • https://www.supergram.cz/kcfinder/upload/files/61705656212.pdfIn PDF document text
    • http://qbcar.ru/ckfinder/userfiles/files/judijedipegobigijato.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1616f10809fd8e---41083944714.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618a1989457c1---rubimonolobokigegejer.pdfIn PDF document text
    • http://csc010.com/userfiles/file/20211016154250_3o40hk.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/82ce0c0985ab31113873324f33273278/21825342929.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161d8b8cc058cf---zejawu.pdfIn PDF document text
    • http://zuche0551.com/upload/file/76014324356.pdfIn PDF document text
    • http://ciccioinpentola.com/userfiles/files/nuriwoladuxeb.pdfIn PDF document text
    • http://maasmartcity.com/userfiles/file/vexiwejerupibixomugimonix.pdfIn PDF document text
    • http://telegid.tv/userfiles/file/wokigureradepikotunu.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/41155316633.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/zenazoxukudonexejikow.pdfIn PDF document text
    • https://dananeye.com/uploads/files/202111232258564579.pdfIn PDF document text
    • http://milkyway-vn.com/upload/files/89617262737.pdfIn PDF document text
    • http://lex-ter.ru/admin/ckfinder/userfiles/files/85914761841.pdfIn PDF document text
    • https://pracowniatechart.pl/fckpliki/file/73952905541.pdfIn PDF document text
    • https://unicon-msk.ru/data/files/4127051166.pdfIn PDF document text
    • https://safetyhanoi.com/userfiles/file/fizitowupogi.pdfIn PDF document text
    • http://stonebreaker.at/66408104907.pdfIn PDF document text
    • http://hastensandbreakfast.nl/userfiles/file/77876501962.pdfIn PDF document text
    • http://dakov.hu/_user/file/79875423620.pdfIn PDF document text
    • https://nexusmediation.nl/files/vizametivanaf.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/8114308411.pdfIn PDF document text
    • http://qdxqw.com/uploadfile/file/58081900890.pdfIn PDF document text
    • http://aaz.sk/editor_uploads/files/pezizaloka.pdfIn PDF document text
    • http://proallprint.com/userfiles/files/pejebaxir.pdfIn PDF document text
    • http://topbondtape.com/uploadss/file/tizarumopapodivuxixa.pdfIn PDF document text
    • http://galantemontagnana.it/ckfinder/userfiles/files/62866233598.pdfIn PDF document text
    • http://aire-limpio.com/img/editor/file/6297768456.pdfIn PDF document text
    • http://basketaci.cz/UserFiles/File/dabaxulinusatejo.pdfIn PDF document text
    • https://n-zvuk.ru/upload/file/15778897474.pdfIn PDF document text
    • https://tekartltd.com/upload/files/tavipodutepupazeta.pdfIn PDF document text
    • http://gift-founder.com/archive/upload/files/xejerokanogozafejabolika.pdfIn PDF document text
    • http://www.razitka-conti-trodat.cz/kcfinder/upload/files/desikigovewazigeziv.pdfIn PDF document text
    • https://millvalley.com/wysiwygfiles/file/77102189602.pdfIn PDF document text
    • http://chipgene.com/image/files/20211123_050449.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 extracted file (font_00_sfnt_off00044c83.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044c83.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44C83 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000463a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x463A3 10740 bytes
SHA-256: 9fa78efb015bd31f7976c221a38b9753c9986c3b24638305a502de1ae8bee116
font_02_sfnt_off00047c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47C06 16936 bytes
SHA-256: f7fb605eb865910f2839d6a87c1d5a061f77ef1e010cfb4df2b65afdb17b342a