Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d89756ab58d6730…

MALICIOUS

PDF

325.4 KB Created: 2022-01-14 12:27:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 6581d904fe78152999dd14b808a19deb SHA-1: a992a790cc43c7ab282a2e5c70c7b6678f9ba54b SHA-256: 5d89756ab58d67309ad57003a30d15ada2da3708b1f837bfc95be68f1ecba4da
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7916

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://www.nitdgp.ac.in/uploads/userfiles/files/jinalazekunibisolonatonu.pdf In PDF document text
    • http://tumakuruvoice.com/tumkurvoice/ckeditor/ckfinder/userfiles/files/95471759252.pdfIn PDF document text
    • http://sanruou.com/app/webroot/uploads/files/vosefasaki.pdfIn PDF document text
    • https://europawindow.com/app/webroot/img/main_content/files/88184446339.pdfIn PDF document text
    • http://huiking.cn/uploads/file/290445207490.pdfIn PDF document text
    • http://vp-concept.ch/app/webroot/kcfinder/upload/files/gamoxopoxefo.pdfIn PDF document text
    • http://abpaluso.com/upload/file/rabimaxat.pdfIn PDF document text
    • http://dealershop.es/camarasegovia/userfiles/file/54518000676.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f9510873352821aa0d8eeef90ef6a19b/roxadofox.pdfIn PDF document text
    • https://editionsitaliques.com/userfiles/file/furas.pdfIn PDF document text
    • http://fertilityupdates.com/userfiles/files/ridizawulawufolidovuket.pdfIn PDF document text
    • http://kxxbs.com/uploadfiles/file/a/rinuda.pdfIn PDF document text
    • http://www.weilandensemble.nl/ckfinder/userfiles/files/14095916079.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/8362a0656ddbaeebcbea08f6cb01d375/xudujukokebuxipefuxise.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161cc5b5dcae1f---robuz.pdfIn PDF document text
    • http://cdenito.net/userfiles/file/zubawuwakefinisevu.pdfIn PDF document text
    • http://i-tos.com/userData/board/file/69439889983.pdfIn PDF document text
    • http://vevo.keresztessyoptika.hu/elemek/file/16109468341.pdfIn PDF document text
    • http://darstin.com/userfiles/files/20556786647.pdfIn PDF document text
    • http://bajajsports.com/userfiles/file/tunedawixowosilo.pdfIn PDF document text
    • http://kassa.pl/userfiles/file/80551293149.pdfIn PDF document text
    • https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/54425494793.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/nkpoe3aojfg9ik7mkdcj1oq6e6/54530016621.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/1hHberoKktI/uplcv?utm_term=project+cost+report+template+excelPDF 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_off0004a9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A9D3 10572 bytes
SHA-256: f90f3dd90aa16be6521b91dcca7ad5822ac1ac94d0d89c4bd913243f8c281aff
font_01_sfnt_off0004c20d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C20D 17664 bytes
SHA-256: e57165d380a1673bb6d766c17728e74f77fc757b370312dfa0cc0611c8ecfab6
font_02_sfnt_off0004f02b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F02B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336