Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d2678ba6e6f846…

MALICIOUS

PDF

539.7 KB Created: 2022-03-03 06:16:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 01f02b2c69dccea872d3c1b710118d1b SHA-1: f79118a3c7ad6c3b58cf806ad2cbc552f7e1da10 SHA-256: c5d2678ba6e6f8462a3317be171d61f9ca47390ab0f83f3a3d8ea3597a981f76
152 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3627

Heuristics 8

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=case+files+series+pdf+free PDF link annotation
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16210b067249b7---tasavetaterifixame.pdfIn PDF document text
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16215f9945c614---mabezeso.pdfIn PDF document text
    • https://foodthings.us/userfiles/file/lobobapewusavizudejunin.pdfIn PDF document text
    • https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/vblg30i7jhlkv79hhmc9j72pp9/2210109579.pdfIn PDF document text
    • http://chromavials.com/d/files/mowapox.pdfIn PDF document text
    • https://partnyor.az/userfiles/file/73096397418.pdfIn PDF document text
    • http://jtipartner.com/ckfinder/userfiles/files/sixoza.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/19vk2p8fg9nceeklfsk76cjbme/11175783598.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/11193582082.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/16208911a5538c---41995752355.pdfIn PDF document text
    • http://magogaralbamoble.com/galeria/files/44770387072.pdfIn PDF document text
    • https://sk-elektron.ru/ckfinder/userfiles/files/biretor.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/ac944d3b68c9ee1103876f5127f341a1/16973425999.pdfIn PDF document text
    • https://habibitours.com/ckfinder/userfiles/files/jaferidekikixakidulaz.pdfIn PDF document text
    • http://plise.org/userfiles/file/fegesaxaj.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/31874429432.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/16201942570e3d---wilagapekozeset.pdfIn PDF document text
    • http://k-yoga.org/file_upload/spaw_upload/file/20220224011608.pdfIn PDF document text
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/162115e6a61f98---28664558704.pdfIn PDF document text
    • http://eurosolar.cz/res/file/defibokugofep.pdfIn PDF document text
    • http://rund.cz/UserFiles/File/wizezigu.pdfIn PDF document text
    • https://ric-sb.si/uploads/files/97763055610.pdfIn PDF document text
    • http://osteriailgalloelinnamorata.com/userfiles/files/pivedazowuzaninomafinir.pdfIn PDF document text
    • http://nrtz.fundacja-spektra.pl/upload/files/kumojosenok.pdfIn PDF document text
    • https://www.algeos.com/js/ckfinder/userfiles/files/28511509830.pdfIn PDF document text
    • http://tko.wavedev.net/img/files/files/55829672488.pdfIn PDF document text
    • http://khachsandomino.com/hinhanh_fckeditor/file/muvosifojimepugerowuxuve.pdfIn PDF document text
    • http://bahiratpatil.com/kcfinder/upload/files/xubuz.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/c30fd92526f0a25fe38b9806176e4687/93166202800.pdfIn PDF document text
    • http://overcomeproblems.com/images/files/jabizuzonuneka.pdfIn PDF document text
    • https://mayorista.cristobalcolon.com/userfiles/file/kilojaxojosudubekan.pdfIn PDF document text
    • http://goodlack.cz/userfiles/file/42462720207.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/162147b0ea7a3b---wisumuxotatanibexef.pdfIn PDF document text
    • https://n-zvuk.ru/upload/file/rifomufariliraniw.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621092cb0e364---bokoxoriduvuxinapa.pdfIn PDF document text
    • http://pleasanton.com/wysiwygfiles/file/68246687419.pdfIn PDF document text
    • http://gearcon-eng.com/file_media/file_image/file/6790021480.pdfIn PDF document text
    • https://groupekheidri.com/ckfinder/userfiles/files/kerunidovedepid.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_off00080038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80038 10200 bytes
SHA-256: 48903efbe9c6a29ca3dbc82e726b6a7a5bef1dcef9e08c6d9f2f6eb7e3a55948
font_01_sfnt_off0008171f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8171F 18592 bytes
SHA-256: d4ee574b28c44c0215a0568562f55c035d7651ec474abf7976aa7d60ee1d0cc0
font_02_sfnt_off000847c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847C9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9