Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b0026d2c2bc1d0…

MALICIOUS

PDF

354.1 KB Created: 2022-03-02 08:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 4e5e08c12bdb7d915c21a3605024483e SHA-1: ea6cba320384c3681da7e4035ea4a0e58b98184e SHA-256: 88b0026d2c2bc1d0d447c8b2d8cf019b578f107fd67e1edc7da8f55968a3ef8d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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
  • 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.
  • 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://tesorosdelayer.net/imgs/images/files/29626314175.pdf In PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16212c61317c55---sazowuledo.pdfIn PDF document text
    • https://hokusui.co.jp/hsk/wp-content/plugins/ckeditor-for-wordpress/kcfinder/upload/files/73660395621.pdfIn PDF document text
    • http://gtlmarinefuel.com/userfiles/file/17629069231.pdfIn PDF document text
    • https://www.insideaccess.lk/assets/js/kcfinder/upload/files/wavelemupatav.pdfIn PDF document text
    • http://www.veedik.net/assets/admin/kcfinder/upload/files/dadulomojejamol.pdfIn PDF document text
    • http://xn--45-1lchpa.xn--p1ai/files/files/xigasivogaxo.pdfIn PDF document text
    • https://norservis.info/files/files/94664518712.pdfIn PDF document text
    • http://3sdent.com/upload/files/sagovuwulufawuwiluzekisuz.pdfIn PDF document text
    • https://syteq-pro.com/userfiles/file/kevesazivejilamexekofeweb.pdfIn PDF document text
    • http://lrm.mcdonalds.ua/ckfinder/userfiles/files/bagizobifazawatuxado.pdfIn PDF document text
    • http://siciny.pl/userfiles/file/39497186541.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/60849158984.pdfIn PDF document text
    • https://seger.cz/userfiles/file/7981485415.pdfIn PDF document text
    • http://tribeninepal.com/dbros/public/ckeditor/kcfinder/upload/files/76762546692.pdfIn PDF document text
    • http://philippetardieu.com/kcfinder/upload/files/81663412324.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1620ee80062823---fufafolutadoroku.pdfIn PDF document text
    • https://0922.sproname.com/files/userfiles/files/zulodofibofigimirob.pdfIn PDF document text
    • http://mazraeir.com/images/upload/files/47436640446.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/02s3rhkofg6cdn5vs21jfjubt7/punefuwilunewom.pdfIn PDF document text
    • https://natyabio.com/uploadfiles/8343391293.pdfIn PDF document text
    • http://elvirajogsi.hu/ckfinder/userfiles/files/16734427400.pdfIn PDF document text
    • https://zivotzaokny.eu/res/file/suzojuroketuwutejajazorev.pdfIn PDF document text
    • https://rozetki.moscow/kcfinder/upload/files/sadatixasolakumokunit.pdfIn PDF document text
    • http://khachsanmyngoc.com/upload/files/pijaridokuruxisedirusuji.pdfIn PDF document text
    • http://grafittipng.com/userfiles/files/43218187282.pdfIn PDF document text
    • https://asiahealth.standrewsdentalsurgeons.com/ckfinder/userfiles/files/22635351770.pdfIn PDF document text
    • https://firstview.christoff-design.com/files/64706656978.pdfIn PDF document text
    • http://christmaslandint.com/userfiles/zapuwolidepufepunisetu.pdfIn PDF document text
    • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/162131b92f3b9c---11746475902.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1621173ac0bebe---79141666116.pdfIn PDF document text
    • http://tavio.su/files/file/36144444669.pdfIn PDF document text
    • http://security-m.jp/tool/images/file/wedapik.pdfIn PDF document text
    • http://a899.net/userfiles/file/89748586317.pdfIn PDF document text
    • https://ij-ph.com/admin/SchoolFiles/files/50348002854.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=minority+report+everybody+runs+gamecubePDF 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
    • 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_off000515e7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000515e7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000515e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x515E7 18892 bytes
SHA-256: c31651a3f4299e1bf1957aa7704fa69a679391ba0101d18775f75c783fb2e1d9
font_01_sfnt_off000547a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x547A1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00055ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55EC1 11224 bytes
SHA-256: 5b96108c15772a123f5d0d5bb6097e2868ae415df25cce1ceee4dedb85985ca3