Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b638fccd53847cd…

MALICIOUS

PDF

333.1 KB Created: 2022-03-05 18:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 96a1204e3c2b2064d347e8e122197dea SHA-1: 5b1d505f007329e200473e03e43540ca331248fa SHA-256: 2b638fccd53847cdc4a1bb79d6aa0df9b3a7bfda60dc678744a6b08b40ef5841
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6388

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 https://fecuq.co.za/XSRYdR1H?utm_term=birgit+aaby-+bruun+formue PDF link annotation
    • https://cihangirhotel.com/upload/ckfinder/files/44905305612.pdfIn PDF document text
    • https://www.zochrot.org/ckfinder/userfiles/files/fidulokunumusanikemuk.pdfIn PDF document text
    • http://lifecontinues.ru/images/files/mesizepoxolu.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/221725493809.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/litobiwotidilej.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/nik941utvvl1msfslak4o78an5/54798238623.pdfIn PDF document text
    • http://sparan-art.ru/ckfinder/userfiles/files/91251746917.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/162219f3c594fb---96579666681.pdfIn PDF document text
    • http://gurukripapublicschool.com/userfiles/file/64474490922.pdfIn PDF document text
    • https://skinrepublic.vn/webroot/img/files/77460176219.pdfIn PDF document text
    • https://tekdalyapi.com/upload/ckfinder/files/78058409998.pdfIn PDF document text
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1621e3a5511136---buworepalunalat.pdfIn PDF document text
    • https://mtmhomeschool4art.com/mycms/uploadedimages/editorUploadedImages/file/kipoleterivomiv.pdfIn PDF document text
    • http://gr-chem.com/upload/files/53508315936.pdfIn PDF document text
    • https://dauglita.lt/components/com_mijoshop/opencart/image/data/files/88878427422.pdfIn PDF document text
    • https://5points.com.ng/5points-admin/kcfinder/upload/files/28132177906.pdfIn PDF document text
    • https://kupro.bg/upload/wyswyg/files/tizovujenamulerubem.pdfIn PDF document text
    • https://www.tocarufar.com/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/66328179168.pdfIn PDF document text
    • http://associatedreclaimed.com/userfiles/files/7662394985.pdfIn PDF document text
    • https://tspinstruments.com/cache/fck_files/file/39989093121.pdfIn PDF document text
    • http://maurovalleferroarchitetto.eu/userfiles/files/posibigasok.pdfIn PDF document text
    • http://sensi-leszno.pl/userfiles/file/guwidote.pdfIn PDF document text
    • http://catmo.fr/kcfinder/upload/files/mebegamoro.pdfIn PDF document text
    • http://altelaw.com/uploads/image/file/dupifowudujizu.pdfIn PDF document text
    • https://brod-plovdiv.com/images/53104794421.pdfIn PDF document text
    • http://pronobile.de/catalog/file/pevabejewajelap.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/a592c905e1f1fe2275f980e1e0a935a1/50488321845.pdfIn PDF document text
    • https://graveyards-fuj.ae/userfiles/files/sagedajolirupisumenu.pdfIn PDF document text
    • http://fskyok.com/uploadfile/files/6859428780.pdfIn PDF document text
    • http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/pazenemi.pdfIn PDF document text
    • http://tuyendung.btccorp.vn/uploads/files/xujatikiwewiwopur.pdfIn PDF document text
    • http://ecompletecontact.com/ckfinder/userfiles/files/deruzurofagovipewitamuru.pdfIn PDF document text
    • http://loscogliodifavignana.it/userfiles/files/15448867574.pdfIn PDF document text
    • http://innovad-ltd.com/userfiles/file/bomowijutamita.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/1679059958.pdfIn PDF document text
    • https://sy-chemical.com/UserFiles/file/vabuxevewevifer.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_off0004c173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C173 10784 bytes
SHA-256: 7068d24ba5a8661f40dad932f11ffd56a14f3ff1149c910e94029d5580abecff
font_01_sfnt_off0004da66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DA66 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004f181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F181 18468 bytes
SHA-256: ff7f35d733958eb0d41dfce89dd8838ef779828645c3ff48d07db61f2f828397