Malicious PDF — malware analysis report

Static analysis result for SHA-256 4787025cb9ab78b0…

MALICIOUS

PDF

219.5 KB Created: 2022-01-16 20:44:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 590a68d4f5b8edd553020f38adf44746 SHA-1: 9c8d13ec3cb7da718310441b244164d4eb73fd88 SHA-256: 4787025cb9ab78b0a252dabe2c3fc6dde03f323929249ae74ab3329c9aa0a6ed
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7784

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
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://archism.ru/uplcv?utm_term=coreldraw+2018++gratis PDF link annotation
    • http://hstairan.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/webabupovoxekavemu.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/b8812f4dd0000cf900c29e22b2701066/35130768404.pdfIn PDF document text
    • http://srs-budapest.hu/uploads/files/nevoxe.pdfIn PDF document text
    • https://riminabda.sk/userfiles/file/fuxefodevexuxetamir.pdfIn PDF document text
    • http://www.jfac.kr/ckfinder/userfiles/files/gagizasojopavola.pdfIn PDF document text
    • https://mcq-exambd.bdbabymart.com/app/webroot/ckfinder/userfiles/files/bapudubixokisafawu.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/50ec1b7c6fd80b786c30c063b0bb549b/76185002393.pdfIn PDF document text
    • http://webs123.com/userfiles/file/zidobupomit.pdfIn PDF document text
    • http://defendo.hu/admin/kcfinder/upload/files/6319255651.pdfIn PDF document text
    • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/zenorifutofi.pdfIn PDF document text
    • http://halmar.info/userfiles/file/tazikugoviwinefopoparef.pdfIn PDF document text
    • http://nhasachthunam.com/upload/files/66164486924.pdfIn PDF document text
    • https://soechi.id/userfiles/file/subotawali.pdfIn PDF document text
    • https://schneider-rozetki.ru/kcfinder/upload/files/kidemej.pdfIn PDF document text
    • http://agisma.ru/files/pages/files/wibaju.pdfIn PDF document text
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/1929b0fd687b833bc99dfb7b4ed515e2/zafojumudepuwoko.pdfIn PDF document text
    • http://evevoyance.fr/adh/.-/file/zifefegareduxife.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618fb522a2b48---kabatigaketoxatavugasuwis.pdfIn PDF document text
    • https://homeuu.biz/upload/ckeditor/pages/files/gitapuxubaxox.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/d0e1bb38bd3501be26ef4bd001b5dc33/xuwex.pdfIn PDF document text
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/5616947deee169fbf0bbf196753554b9/48124167801.pdfIn PDF document text
    • http://uitvaartverzorgingsindex.nl/images/uploads/82698004158.pdfIn PDF document text
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/pozosusurupawozoki.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_off0002fea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEA4 18604 bytes
SHA-256: 2079bc761746caa8e97c3f6de1cacd89c6bff6cd7001a666f46401061736622f
font_01_sfnt_off00032f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32F48 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000345ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x345EC 10940 bytes
SHA-256: 4bdba0914cbb556a51477ad82ce16873f5e69127ab87db285874e426f028d0d3