Malicious PDF — malware analysis report

Static analysis result for SHA-256 191fa8564f5db0d2…

MALICIOUS

PDF

69.6 KB Created: 2021-11-29 12:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 741baffb2151e208de653dc47cc67603 SHA-1: 01b30c5980ba5a055d5a4a6632b8a7ab5f7e4fe3 SHA-256: 191fa8564f5db0d2478af3fbc69cf401cf8ac83f801b87c7e22b316112b39d29
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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.
  • 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 http://agriturismoilnoceto.com/userfiles/files/81784946016.pdf In PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1618cbedbbaa88---zulujefofi.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/63475429497c738445eff480af594c5d/nupubudivumurazopibog.pdfIn PDF document text
    • https://www.stnedu.com/ckfinder/upload/files/36302219716.pdfIn PDF document text
    • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/96455666084.pdfIn PDF document text
    • http://www-a.euro-ex.net/images/blog/file/67196294702.pdfIn PDF document text
    • https://specializzati.tecnaevolution.it/dataload/ckupload/77406743670.pdfIn PDF document text
    • https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/rutibote.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/tenibafalubetonezitudut.pdfIn PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/jenemunufugig.pdfIn PDF document text
    • http://ideal-site.ru/userfiles/file/70349058503.pdfIn PDF document text
    • http://nb-magnet.com/upload/files/lateduworaxe.pdfIn PDF document text
    • http://maskaevlawyer.ru/userfiles/file/robolegegipowolofakuzaf.pdfIn PDF document text
    • http://litho-and-co.fr/ckeditor/upload/files/sidufetekunutatiti.pdfIn PDF document text
    • http://domingo.hu/ckfinder/userfiles/files/tezawigu.pdfIn PDF document text
    • http://ville-dammarie.com/ckfinder/userfiles/files/36086172303.pdfIn PDF document text
    • http://www.yemany.com/yemfiles/files/fulupo.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/jerefepevu.pdfIn PDF document text
    • http://siciny.pl/userfiles/file/jaken.pdfIn PDF document text
    • https://cm2aum.neworg.com/userfiles/file/35476451787.pdfIn PDF document text
    • https://weekendtripskolkata.com/userfiles/file/pupokujepuvukejomumenup.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/161448e969f1b7---12308069990.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/oscUj7J0Gjw/uplcv?utm_term=job+interviews+questions+and+answersPDF 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.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_off0000afd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD1 10724 bytes
SHA-256: 12ecf2d6793e960273e33ad70274dc295171479a123a119d8fb7801fae35a20c
font_01_sfnt_off0000c873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC873 16168 bytes
SHA-256: 8b530815e236ba8bdff8e091b0647a5bbaade8de84d2988ec37551058ef5668e
font_02_sfnt_off0000f242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF242 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336