Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3f278fc18d5cc2…

MALICIOUS

PDF

344.7 KB Created: 2022-01-29 19:48:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 99db73c104da4fb04399313f431a0c9b SHA-1: 3ddb402ed9f92ebfa18049d22a42ab74024a9c93 SHA-256: 4e3f278fc18d5cc229b9c10958247c636b78342d3ae94e1025120cfcf4024178
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

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://lovig.co.za/XSRYdR1H?utm_term=gerente+de+tecnologia+da+informa%C3%A7%C3%A3o+em+ingles PDF link annotation
    • http://color-gateway.com/userfiles/file/derupuwogarizofitosejizi.pdfIn PDF document text
    • http://artikos.pl/userfiles/file/duture.pdfIn PDF document text
    • http://vidol.eu/userfiles/file/96331206416.pdfIn PDF document text
    • https://baigiangtoanhoc.com/upload/files/suwejabepizuzo.pdfIn PDF document text
    • http://karinameal.ru/imgdish/files/72310047550.pdfIn PDF document text
    • http://stylingstories.nl/kcfinder/upload/files/laziruwomavoraxerapuneb.pdfIn PDF document text
    • http://iwakuniyumiya.com/js/kcfinder/upload/files/padesosolojo.pdfIn PDF document text
    • https://kientrucmoi.com.vn/admin/kcfinder/upload/files/vuzumo.pdfIn PDF document text
    • http://hotelborgodeipoeti.com/userfiles/files/lenegumujibibuwujil.pdfIn PDF document text
    • https://dolaodong.com/userfiles/file/32899710197.pdfIn PDF document text
    • http://cataga.de/beta/files/file/78119547570.pdfIn PDF document text
    • http://studioindelicato.com/userfiles/files/baxilebu.pdfIn PDF document text
    • http://sjhrz.com/images/upload/File/41771325061.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/4c3bcbff31363752eaf8235b9996ed04/56510849503.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16152d90688d13---lifinemanuw.pdfIn PDF document text
    • http://jubileejec.com/userfiles/files/72566741415.pdfIn PDF document text
    • http://www.cenlafilm.com/siteuploads/editorimg/file/lakubosag.pdfIn PDF document text
    • http://angelofthewinds.org/ckfinder/userfiles/files/fusodomupevojonupixi.pdfIn PDF document text
    • https://loyalangkorapartment.com/userfiles/file/87710914382.pdfIn PDF document text
    • http://hypovyhody.sk/res/file/sakapevutoka.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202110110010385520.pdfIn PDF document text
    • http://citlak.de/admin/UserFiles/file/xuxikomevawenoribapolori.pdfIn PDF document text
    • https://fiscalonline.eu/app/webroot/files/userfiles/files/85285592606.pdfIn PDF document text
    • https://gskrem.ru/img/file/nomaw.pdfIn PDF document text
    • https://konkrea.be/uploads/files/mimasaxanadosanozadif.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16195d121177e4---bopeg.pdfIn PDF document text
    • https://alshamiltrading.com/alshamilfiles/file/56705323379.pdfIn PDF document text
    • https://equantumconsulting.com/files/files/rifakalilagawatazexozawe.pdfIn PDF document text
    • https://dewalt-naradi.cz/media/upload/editor/file/45624627920.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/161eabfc8ec802---panimusojedir.pdfIn PDF document text
    • http://lex.tj/img/file/91788892194.pdfIn PDF document text
    • http://atmaircenter.com/lb/userfiles/files/3567954267.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b8daa510d---pedubokokijunukejokowak.pdfIn PDF document text
    • https://mlbcsimleague.com/ckfinder/userfiles/files/1245387771.pdfIn PDF document text
    • https://www.propertymegamart.in/admin/ckeditor/kcfinder/upload/files/26254890907.pdfIn PDF document text
    • http://dragoniresorts.com/userfiles/tazusemejaregegope.pdfIn PDF document text
    • https://amgab.se/wp-content/plugins/formcraft/file-upload/server/content/files/161f36e80459eb---pukezavezewukazusirix.pdfIn PDF document text
    • http://piannocreativo.com/js/new/fckeditor/userfiles/file/kibabi.pdfIn PDF document text
    • https://www.zolmedis.lt/ckfinder/userfiles/files/78327325186.pdfIn PDF document text
    • http://electric-kernbichler.at/57791969679.pdfIn PDF document text
    • https://luminex.pl/upload/file/rilubalolutubexotiru.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_off0004f333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F333 17952 bytes
SHA-256: e5ccb6c89b4190858070eae76a58fcc729f1c9227b755e0d84b3cc9613ed9d11
font_01_sfnt_off00052020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52020 11320 bytes
SHA-256: 4713fd1628e966742ef9eef698fb789b91fa33ca49f1eb6d07d251c3e23bc2c6
font_02_sfnt_off000539cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x539CC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336