Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d89e2edf8941449…

MALICIOUS

PDF

73.0 KB Created: 2021-10-23 19:29:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 288c97f642e520e9e66235c70ea01b1f SHA-1: 060228aa69e6775afc0ce913149ab482ecfc642e SHA-256: 5d89e2edf8941449df083548794a3a2651f2390de8216aa63b582fdf07df5c16
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://huntic.ru/uplcv?utm_term=third+grade+trivia+questions+and+answers PDF link annotation
    • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16142272aa76d7---73250292521.pdfIn PDF document text
    • http://doanekeyes.com/userfiles/docs/81673293339.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161610c7fc4c34---91848772954.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/hda1icuvukogv6dkvpvu8egcs7/tofekunitogezarujej.pdfIn PDF document text
    • https://baohohoanglong.com/userfiles/file/10395753785.pdfIn PDF document text
    • http://unitez.net/images/newtech/files/67326634676.pdfIn PDF document text
    • http://phongthuyphatloc.com/luutru/files/podekusiritowamiwi.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/b320b0db7aa70155de9396aa492dd6be/wagalovake.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161733a207627e---xifomewumamolate.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16145d161f1aee---zefezejamivaje.pdfIn PDF document text
    • http://lapenya.cat/imgjovesnaves/file/bulixol.pdfIn PDF document text
    • https://www.disbel.es/ckfinder/userfiles/files/5619373909.pdfIn PDF document text
    • https://edgecs.com/documents/diredu.pdfIn PDF document text
    • http://wwm-quanta.com/upload/files/17926915544.pdfIn PDF document text
    • https://nikoljski.com/ckfinder/userfiles/files/12251651205.pdfIn PDF document text
    • https://whiteplacard.com/UserFiles/file/xoziduxajo.pdfIn PDF document text
    • https://pmapmc.com/userfiles/image/files/dibejuxipilap.pdfIn PDF document text
    • https://soudurelausiere.com/upload/editor/file/folanuzebudevuzemew.pdfIn PDF document text
    • https://togeltop.com/contents/files/favazopopewululijuma.pdfIn PDF document text
    • http://abovomedia.hu/_user/file/panamunakonesozedejobe.pdfIn PDF document text
    • https://novsport.com/content/File/jilesutezebupexotaviku.pdfIn PDF document text
    • https://felicitareonline.ro/ckfinder/userfiles/files/97103530284.pdfIn PDF document text
    • https://beeshark.ro/app/webroot/files/userfiles/files/21545965173.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_off0000bc91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC91 16144 bytes
SHA-256: 87175e994950455ffab712dabd8bf3e8c969dcb3562b51c296de8917109a58f0
font_01_sfnt_off0000e5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fdc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC8 10844 bytes
SHA-256: f108b29559b8762514ac49d73fb920333e32417e1f82e287021cbdf8cfa37443