Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8d94a387aa77e4…

MALICIOUS

PDF

69.3 KB Created: 2021-11-16 06:23:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 6f00645cc80d00e83da167b497233e57 SHA-1: f5a7fd45f1a9c166ee9db84d45daf17ddd121ae7 SHA-256: 2c8d94a387aa77e455581eb61b5fedc393608e703e7714b1c92fd76481e7d68c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://inwebjor.ru/uplcv?utm_term=electric+traction+system+book+pdf PDF link annotation
    • https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/rarotiw.pdfIn PDF document text
    • https://full-e.com/app/webroot/userfiles/files/20211021_025908.pdfIn PDF document text
    • http://sdv.sk/userfiles/articles/file/64969909133.pdfIn PDF document text
    • https://giaiphapthietke.vn/media/file/files/lupirinapekadalesavinifu.pdfIn PDF document text
    • http://argyleliquidations.com/userfiles/files/vifurit.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/fb6595023b0d2d479758c38d0e5403bd/menetotujofajufejakobiruv.pdfIn PDF document text
    • http://aczelzalog.hu/tmp/kexasawufudi.pdfIn PDF document text
    • https://jimsdelibrookhaven.com/demo/jimsdeli/admin/userfilesfile/gupones.pdfIn PDF document text
    • https://brianhigbielaw.com/UserFiles/file/14744079069.pdfIn PDF document text
    • https://www.ftha.org/admin/ckfinder/userfiles/files/sebolanexudekulafavuwafu.pdfIn PDF document text
    • http://villacappuccina.com/userfiles/files/776806064.pdfIn PDF document text
    • https://click2repair.chocoza.com/userfiles/file/doxun.pdfIn PDF document text
    • http://spodne-pradlo-2bpoint.sk/UserFiles/File/mosivufonagotuvofa.pdfIn PDF document text
    • http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/89949328217.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616509f37e8b1---duloxexajasabizesarab.pdfIn PDF document text
    • http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/6428540355.pdfIn PDF document text
    • http://mkconline.com/landmark/ckfinder/userfiles/files/kiruxaluvirufusesoba.pdfIn PDF document text
    • http://cnex.cc/images/blog/file/majusak.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16139e61faa505---35001718181.pdfIn PDF document text
    • http://pensionpoint.cz/userfiles/files/ruzavij.pdfIn PDF document text
    • https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/f6442610686c666473fe66856975d57b/lutasunuvaxegug.pdfIn PDF document text
    • https://noticky.net/akce/fotky/file/temitikebizilazijoz.pdfIn PDF document text
    • http://eszixv.hu/ckfinder/userfiles/files/sinujaf.pdfIn PDF document text
    • http://debandhelder.nl/ckfinder/userfiles/files/87920191739.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16130e6e45793e---vupozivabevufojivunez.pdfIn PDF document text
    • 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_off0000abd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABD6 11112 bytes
SHA-256: 60ed6cd1737eb2938afdc40696d90ded54b86772ee010ffca561d147e2e841fe
font_01_sfnt_off0000c583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC583 16620 bytes
SHA-256: bafec67ff656daecffcef63f3ca60a2e2c290342e85746ca65b90728213a2c97
font_02_sfnt_off0000f09c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF09C 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef