Malicious PDF — malware analysis report

Static analysis result for SHA-256 8471f9d1b0b5b60f…

MALICIOUS

PDF

189.5 KB Created: 2022-03-25 19:52:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: b6c43e971204ce901a226c16f0e5fd9b SHA-1: 6a9141213ab8c2ce1d7f812e6e88d49dfcc7e90f SHA-256: 8471f9d1b0b5b60f261dd4e045c0260e0e72ce1199e1b79417b33317d0e5ef15
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7946

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 https://absolutefusionworkout.com/userfiles/files/xakizidozobefav.pdf In PDF document text
    • http://snuhonors.com/userfiles/file/84162150098.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/hvcm5b6o41kpe1jhb4g1c92i1a/72109252664.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621e8217d5bc8---merew.pdfIn PDF document text
    • https://listino.sopar.com/img/file/24524132235.pdfIn PDF document text
    • https://ruxthai-guesthouse-chiangmai.com/ckfinder/userfiles/files/72221954104.pdfIn PDF document text
    • http://maiodi.com/userfiles/files/tokepamerozof.pdfIn PDF document text
    • https://vaitinhdien.com/app/webroot/upload/files/23961078709.pdfIn PDF document text
    • http://ciatic.saintelserver.com/archivos_editor/file/gadawuzulinu.pdfIn PDF document text
    • https://www.propertymegamart.in/admin/ckeditor/kcfinder/upload/files/46627852813.pdfIn PDF document text
    • https://moruslondinium.org/img/files/lerusasekew.pdfIn PDF document text
    • https://euronet.stonavka.cz/webpagebuilder/ckfinder/userfiles/files/koxuzo.pdfIn PDF document text
    • http://elbe-radweg.biz/storage/upload/files/zudafunoposiba.pdfIn PDF document text
    • http://jualumnitoronto.com/editor/uploadfiles/48136671595.pdfIn PDF document text
    • http://tatagz.com/uploadfile/files/61042003152.pdfIn PDF document text
    • http://kledingindex.nl/images/uploads/49711105603.pdfIn PDF document text
    • http://avomanel.com/cliente/conteudos/files/54432406397.pdfIn PDF document text
    • https://vinacomvietnam.vn/uploads/news_file/14194866885.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16231e0bfee97d---wokixofulimesajetaliwok.pdfIn PDF document text
    • http://cosmik-kinoteatr.ru/sadm_files/bibabotiri.pdfIn PDF document text
    • http://altadirezione-consulting.it/userfiles/files/bapuxabema.pdfIn PDF document text
    • http://poiskvod.ru/images/file/gasupirixerisal.pdfIn PDF document text
    • https://bengalroys.com/ckfinder/userfiles/files/32574144734.pdfIn PDF document text
    • http://ieltsadd.ir/cache/fck_files/file/kofot.pdfIn PDF document text
    • http://immat.org.tr/kcfinder/upload/files/69660715647.pdfIn PDF document text
    • http://ashioke.com/images/library/File/juzunukebixasoxoz.pdfIn PDF document text
    • https://maximaainfoways.com/WebExams/ckfinder/userfiles/images/files/nixojobekupunig.pdfIn PDF document text
    • http://kama-msm.ru/storages/file/89341763394.pdfIn PDF document text
    • https://badischer-kunstverein.de/ckfinder/userfiles/files/25528104126.pdfIn PDF document text
    • http://bronnicy.inhome360.ru/admin/ckfinder/userfiles/files/jedularajugelefa.pdfIn PDF document text
    • http://ks4073.com/file_media/file_image/file/guvugorubuxed.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=bls+provider+student+manualPDF 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 extracted file (font_00_sfnt_off000286d3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000286d3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000286d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x286D3 10772 bytes
SHA-256: 10a471128b26829528574e6908c81658f65ae6a8934a666750541b84703e01cc
font_01_sfnt_off00029fa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29FA5 18064 bytes
SHA-256: 725b50d7b6654097478e37cef523f8d4b1dfcbfed716470a1d2255976f2fec23
font_02_sfnt_off0002cef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEF5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9