Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ff822acc5b36d…

MALICIOUS

PDF

117.1 KB Created: 2021-08-23 19:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 5eec054d9a4aeac4f922d71cee2505bc SHA-1: 9269700a2ab9a537b4c1cc9882370e76ec8d6049 SHA-256: 478ff822acc5b36d5e3c057d652d8b0c7057b2e5dc0660dfb446799f324d7861
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2fe09b579---88329601451.pdf In PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdd4ce7e60---bomiwewolatoduzigo.pdfIn PDF document text
    • http://fatamorgana.fr/uploads/assets/file/tonapudutevelazi.pdfIn PDF document text
    • http://radio-salsa.com/php/rs/filesupload/file/5359383531.pdfIn PDF document text
    • https://virtualpulse.eu/UserFiles/file/9577899072.pdfIn PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/056321dee8d1eb1b9f5a55451a6126bf/vovakavetotumidogi.pdfIn PDF document text
    • https://davnosti.ru/upload/winofodagi.pdfIn PDF document text
    • https://privatecambodiatour.com/userfiles/file/pixir.pdfIn PDF document text
    • https://culturasiapamplona.com/guiarte_userfiles/files/35771493267.pdfIn PDF document text
    • https://pr-dienst.ch/file/6522580504.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/qm3foa70dkfgmgvb1t66htspi3/xumofato.pdfIn PDF document text
    • http://biafrapol.pl/pliki/file/turituxufifuwijase.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/16072e4bc09ec1---salenazegetamazijolu.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160895f140a833---13390523970.pdfIn PDF document text
    • http://klubalfa.org/img/userfiles/file/videnunadotexij.pdfIn PDF document text
    • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/6231568ae3dbb0f57e9b53c0709256dc/92014405695.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4a80a6f14---2332338364.pdfIn PDF document text
    • http://sushi-belovo.ru/files/bozovexagudizorofotuz.pdfIn PDF document text
    • https://zabulgaria.org/userfiles/file/97414100359.pdfIn PDF document text
    • https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/3f42002c266bfc2229267087f8aec39c/menonid.pdfIn PDF document text
    • https://kawanmto.info/contents//files/naloxapekolivuga.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087edff4897a---muwevudasefow.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=the+bell+curve+book+pdfPDF 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_off00016869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16869 17924 bytes
SHA-256: 0a6e7ed3d64d67afcf7850e6b846a77bd8ec73a0f8a3c64720805bdd252a77d2
font_01_sfnt_off000196cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x196CD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001aee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AEE4 10456 bytes
SHA-256: 8995ab78b34bedeee0cd22f25ebc72f27fda219b0882ce9d770a46071e69796f