Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8e2d51415ce506…

MALICIOUS

PDF

121.1 KB Created: 2022-04-13 15:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: ef16936cd8e4dc15a090125db1d98bf2 SHA-1: cdad6a7af765b47186683623f3fecde641c83bf1 SHA-256: cb8e2d51415ce506a8caa7b5fdc93da1612c9bf2eb77c890abedbbaeb10a6270
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://podar.co.za/YmrXLWy8?keyword=english%20report%20writing%20examples%20for%20students PDF link annotation
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/444a07065833fbc02a9e3b1c472d7f27/popesenidososunezitekawil.pdfIn PDF document text
    • https://lubukapilibuvi.weebly.com/uploads/1/3/4/0/134095968/1787103.pdfIn PDF document text
    • http://sossurfshop.com/cliente/conteudos/files/64822349400.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620525eca8ed3---rorurujolojifolokivibu.pdfIn PDF document text
    • http://grubstreet.ca/ckfinder/userfiles/files/figidojafapubuj.pdfIn PDF document text
    • https://pudakivofuleges.weebly.com/uploads/1/3/4/8/134853743/nufodovov_rugugino_lukagip.pdfIn PDF document text
    • https://xumogaveranowiw.weebly.com/uploads/1/3/4/3/134371782/7600392ef.pdfIn PDF document text
    • http://ildongwire.com/userfiles/file/kukevatifusupari.pdfIn PDF document text
    • https://piligerababuge.weebly.com/uploads/1/3/5/3/135324290/pasukemogaf_lisafepopegoz_balax_zulekas.pdfIn PDF document text
    • https://xotomunekezej.weebly.com/uploads/1/3/1/0/131070571/7546767.pdfIn PDF document text
    • https://zazozoke.weebly.com/uploads/1/3/0/7/130776388/duxalolugusitowo.pdfIn PDF document text
    • https://acrgroup.nl/userfiles/file/nupubadajorew.pdfIn PDF document text
    • http://starejsasporocila.igorgabrovec.eu/userfiles/file/30177669773.pdfIn PDF document text
    • http://robodit.ru/kcfinder/upload/files/80205876577.pdfIn PDF document text
    • https://jofetafoba.weebly.com/uploads/1/3/4/4/134485710/zezag.pdfIn PDF document text
    • https://sieuthimayphat.com/ckfinder/userfiles/files/gixodew.pdfIn PDF document text
    • http://lamekatus.com/uploads/ckeditor/files/bilafomepagijuguviko.pdfIn PDF document text
    • https://szerokiewody.pl/files/files/33668086596.pdfIn PDF document text
    • https://gyogytorna-vac.hu/admin/kcfinder/upload/files/73067849360.pdfIn PDF document text
    • http://rocb-ap.org/file_media/file_image/file/28262373005.pdfIn PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/mefotuzodidos.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/vosagisalupu.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/cijkgaif2stmquo7o587c5bd9i/wovewugaruk.pdfIn PDF document text
    • http://poliman.srv.br/assets/kcfinder/upload/files/28924316334.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_off0001754a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001754a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001754a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1754A 11216 bytes
SHA-256: e8f1e33f8b3f800cb1cd93ced542a7363e9d1eae5f3d647917e012e5accb6cf1
font_01_sfnt_off00018f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18F35 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001a747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A747 17108 bytes
SHA-256: b11b037216bdc9d79132766a2812ef2b278d9c49d9aecc491f921cb3b278e073