Malicious PDF — malware analysis report

Static analysis result for SHA-256 b613e5b430f55443…

MALICIOUS

PDF

338.8 KB Created: 2022-04-01 01:21:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 74b0a0c10ea7440a8c14abc4a21e3dd0 SHA-1: 5ca92f557734920154dbce0af9e17f6656dd3e25 SHA-256: b613e5b430f554436dc3b46f4fd4987ee77f87f572a043b976c4f6c56c1373ca
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6677

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://archguruorg.welkinovation.com/admin/UserFiles/images/files/18697524595.pdf In PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16237568455257---57576039223.pdfIn PDF document text
    • https://lekofubazag.weebly.com/uploads/1/3/1/8/131872104/kijozapozu_babuwosotov.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/06da09dfcda61cdd7dedca036d8906c9/55616251464.pdfIn PDF document text
    • https://vugawijop.weebly.com/uploads/1/3/4/5/134594760/496995.pdfIn PDF document text
    • https://fetofopup.weebly.com/uploads/1/3/4/5/134507679/381cbde6a04e7.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/bixuzoposexolijig.pdfIn PDF document text
    • https://vigiminalaxu.weebly.com/uploads/1/3/1/4/131454394/4042484.pdfIn PDF document text
    • https://www.gaiascience.com.my/assets/adminpanel/plugins/ckeditor/plugins/kcfinder/upload/files/piwazijogofakedeze.pdfIn PDF document text
    • http://colantuono.it/userfiles/files/6796213590.pdfIn PDF document text
    • http://www.como-grup.ro/fisiere/file/xavufeso.pdfIn PDF document text
    • https://bomando.bomsolar.com/uploadfiles/files/fikolezezexutiwigiret.pdfIn PDF document text
    • https://studiecarriere.it/uploads/file/69787516025.pdfIn PDF document text
    • http://ipsc-pv.cz/kcfinder/upload/files/40055219460.pdfIn PDF document text
    • http://bappeda-jepara.org/app/webroot/js/kcfinder/upload/files/40713721952.pdfIn PDF document text
    • https://petribax.com/userfiles/file/petudelenu.pdfIn PDF document text
    • http://rsst77.ru/upload/files/98243701455.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16201397deee55---93141833423.pdfIn PDF document text
    • http://byty-pardubice.eu/UserFiles/File/senesa.pdfIn PDF document text
    • http://yonezawanet.jp/units/24250/zcycom/files/92203652581.pdfIn PDF document text
    • https://serviceservice.eu/userfiles/file/5314145645.pdfIn PDF document text
    • http://queensparkview.com/image/upload/File/71503124212.pdfIn PDF document text
    • http://burfel.ru/upfiles/files/60695040121.pdfIn PDF document text
    • http://membre3.trajetplus.fr/userDocs/file/fivuluvozukadomozixege.pdfIn PDF document text
    • https://www.adamtraveljordan-ru.com/mypanel/includes/ckeditor/kcfinder/upload/files/jipazemuxaxidaf.pdfIn PDF document text
    • http://agencies.opertur.com/uploaded/kcfinder/files/getopekavilagizuzilevofaf.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/34980668d3015e208f60036cf648d969/90399680998.pdfIn PDF document text
    • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/96003476515.pdfIn PDF document text
    • https://puvixote.weebly.com/uploads/1/3/5/4/135400279/8218930.pdfIn PDF document text
    • http://olddieselparts.com/ckfinder/userfiles/files/18954695226.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162440140f3c77---73345016851.pdfIn PDF document text
    • http://aydinservis.com/ckfinder/userfiles/files/4671194284.pdfIn PDF document text
    • https://pevosisonudem.weebly.com/uploads/1/3/7/4/137498794/melejogukusugajosaku.pdfIn PDF document text
    • http://angel-conference.org/upload_fck/file/2022-3-3/20220303090226605142.pdfIn PDF document text
    • https://www.journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/xogazifexir.pdfIn PDF document text
    • http://pharmorgsyn.com/upload/files/54765488849.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=manual+acls+2015+pdf+espa%C3%B1ol+grPDF link annotation
    • https://kawavaturitavo.weebly.com/uploads/1/3/5/3/135321378/pabalomif.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_off0004d01c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d01c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D01C 21480 bytes
SHA-256: 9d19f7dfcfc24d16bf91cb4dc722cd9be7e71d8a1550c3e2869a140db39ed0af
font_01_sfnt_off000506c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x506C2 11332 bytes
SHA-256: dd705e33af01332acc4e66de2206e276285f377214a672fa92c7e592e44cbb88
font_02_sfnt_off00052137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52137 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1