Malicious PDF — malware analysis report

Static analysis result for SHA-256 191d27e6b643145a…

MALICIOUS

PDF

81.6 KB Created: 2021-11-13 17:54:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 70076acc9fabfb83a7723a50bf3cac6a SHA-1: fb43f6ee7371655661d45e40a1985eea950e8344 SHA-256: 191d27e6b643145a9aed37a8c3b042b5e003e0919c63797522a7a2293af42f0f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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://pyramidplaster.com/file_media/file_image/file/fotizowisu.pdf In PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16166a51fe62b3---sovapuzirufiwuwato.pdfIn PDF document text
    • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/161775dca55721---6982732004.pdfIn PDF document text
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/1816cc0ec3cc80f1f627b4601167d7a7/lugikam.pdfIn PDF document text
    • https://namratalakhotia.com/userfiles/files/87435252815.pdfIn PDF document text
    • https://swiz.eu/files/editor/26616754033.pdfIn PDF document text
    • http://srtprogetti.eu/userfiles/files/53266912780.pdfIn PDF document text
    • http://tecs4.com/intranet/ckfinder/userfiles/files/5042461259.pdfIn PDF document text
    • http://skkl.cn/filespath/files/20211025205112.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1617fc727b4a21---pililus.pdfIn PDF document text
    • https://idosekotthonaveresegyhaz.hu/files/files/86331438934.pdfIn PDF document text
    • http://daindnc.com/fckeditor/userfiles/file/2557013281.pdfIn PDF document text
    • https://proartgaleria.hu/files/files/joxuvawurerovetagura.pdfIn PDF document text
    • https://www.tristar-technology.com/ckfinder/userfiles/files/soxerepub.pdfIn PDF document text
    • https://brazilairporttransfers.com/ckfinder/userfiles/files/54745448992.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/c75aef342862661e8fcdd0a005ada21b/23378801885.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1618db23644dc5---41448093677.pdfIn PDF document text
    • http://jessica.yelivery.com/cote_dor_import/admin/ckfinder/userfiles/files/20081246185.pdfIn PDF document text
    • https://topupdana.com/contents/files/16629353390.pdfIn PDF document text
    • http://hightopeducation.com/cms_uploaded/file/fidikozabowisakaravovogom.pdfIn PDF document text
    • http://5m-tti.com/uploads/image/files/wazoduwanaborukiribagi.pdfIn PDF document text
    • http://a-mega.ua/images/uploads/file/kojopilosixeduw.pdfIn PDF document text
    • http://teusz.pl/UserFiles/file/ledusakikebeme.pdfIn PDF document text
    • http://www.smartlandgroup.com/ckfinder/userfiles/files/pawefa.pdfIn PDF document text
    • http://ventss.ru/userfiles/files/tuxuzimexemafopifesutoji.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/takotozelitipiruduri.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=how+to+manually+set+ip+address+windows+10PDF 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_off0000d657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD657 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_01_sfnt_off0000ed7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7D 11020 bytes
SHA-256: 1d9144a9f9c49152720a287434248a637fd452759fc47d2931fa71d4b51b7ee6
font_02_sfnt_off00010724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10724 18964 bytes
SHA-256: f1d58ffb6c182d39e0065004a6e9419f78d4825fd81f6ad6aef5217cac012ab4