Malicious PDF — malware analysis report

Static analysis result for SHA-256 4784ee3cb95071a7…

MALICIOUS

PDF

155.8 KB Created: 2021-12-03 20:00:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 9c9b5e392cf7b79cdaa5660dd69f24a1 SHA-1: c5a5e37e26a8aed666cd627f893f3b87ce2389e0 SHA-256: 4784ee3cb95071a7a0e2f9ad84fa5e413668663cdb804466cc001e0dcdb7a723
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9586

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://kattliv.com/kattliv/admin/userfiles/file/98188925319.pdf In PDF document text
    • http://mygiftltd.com/userfiles/file/4597525176.pdfIn PDF document text
    • https://movimientofamiliadejesus.com/images/uploaded/file/99529448385.pdfIn PDF document text
    • https://euchebnici.com/img/file/baren.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/62685126282.pdfIn PDF document text
    • http://retrievers.su/ckfinder/userfiles/files/65898490626.pdfIn PDF document text
    • http://gemculture.com/userfiles/file/87149670684.pdfIn PDF document text
    • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/161878719c0fb5---xupepajulafimuxexedaxogot.pdfIn PDF document text
    • http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/fowemonabufadad.pdfIn PDF document text
    • http://alarmy-kamery24.pl/userfiles/file/76085504428.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1618b9fb7953ee---84115981870.pdfIn PDF document text
    • http://hotel-gerard-dalsace.com/upload/document/84215421147.pdfIn PDF document text
    • https://bibonatura.com/ckfinder/userfiles/files/resuvonaziso.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/lelegazefevivogojupawuzot.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/pomedulufefisisokizekawe.pdfIn PDF document text
    • http://fantasymusic.it/userfiles/files/mewatapimaxid.pdfIn PDF document text
    • https://millvalley.com/wysiwygfiles/file/13297937658.pdfIn PDF document text
    • https://hobbypet.cz/files/file/pagifukopabora.pdfIn PDF document text
    • http://abbeloosschinkels.be/userfiles/file/54089158436.pdfIn PDF document text
    • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/51590046386.pdfIn PDF document text
    • http://winhazel.com/indigo/ckfinder/userfiles/files/pugawatuluwulazogakevu.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/179e39498e083edf968f8e127ad24c5d/figezasusofevesetuwugo.pdfIn PDF document text
    • http://www.grifin.sk/files/99249551680.pdfIn PDF document text
    • http://cc-loges.com/uploads/file/fonixugijixuro.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/TxADE9PCSUw/uplcv?utm_term=re%3Amaid+full+walkthroughPDF link annotation
    • 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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ffb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FFB1 18240 bytes
SHA-256: d7fdd4c6169f261d3b63dffd5f3711721ce045c8666e6d489961b643aed14cb3
font_01_sfnt_off00022f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22F3F 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000245e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x245E3 10968 bytes
SHA-256: 1461a2696d0601e3288823510718c6396e43de7b9d0dd1280ae637ccf2f637af