Malicious PDF — malware analysis report

Static analysis result for SHA-256 793238e05e53715e…

MALICIOUS

PDF

72.6 KB Created: 2021-11-26 22:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 3673381408b1f948dc3752de902b1550 SHA-1: 905aa056ee585973868bb4ee0273c3d11d8ceced SHA-256: 793238e05e53715e3c85ab5d20a5db18090e9b09e4ce4dbd2adb2b4fba3c03fe
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 http://stepasidemedical.com/images/uploads/file/muxetapemiwetetitiviroj.pdf In PDF document text
    • http://ombs.ru/uploads/files/xuzusawigolisarofazuminu.pdfIn PDF document text
    • http://westpakusa.com/phpsites/vertical_living/uploads/file/24855289832.pdfIn PDF document text
    • https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/kitosegebazeroxeki.pdfIn PDF document text
    • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea4d62a046---91598096078.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/6a70db95b71e79b7d2c292a1f9500705/zebatubinumunenilubidoj.pdfIn PDF document text
    • https://stdtekstil.com/upload/ckfinder/files/22968084779.pdfIn PDF document text
    • http://bbdecontra.com/userfiles/files/sizagupagozik.pdfIn PDF document text
    • http://travel-door.com/userfiles/file/6343601249.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16199baf3bcb8b---nejediniwudonogow.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/f0167672f253c35792127033aae059b6/nefotalibedurifomo.pdfIn PDF document text
    • https://dulichduyendangvietnam.com/uploads/news_file/diwefazipitoxetate.pdfIn PDF document text
    • https://alice-immo.com/userfiles/file/vukukelefimoz.pdfIn PDF document text
    • http://csc-0898.com/userfiles/file/20211119135243_co5gu0.pdfIn PDF document text
    • https://i-intelli.com/ckfinder/userfiles/files/jazutelonogabusuk.pdfIn PDF document text
    • http://cnex.cc/images/blog/file/wanineli.pdfIn PDF document text
    • http://hainescentreasia.com/images/file/pomojewovunutew.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/wifuvugovorox.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/73688352315.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/4ac40e4671b4eb435a959250eaa4f58b/vefafatowofowopigoga.pdfIn PDF document text
    • http://ingmontagna.com/userfiles/files/14889056309.pdfIn PDF document text
    • https://yar-net.ru/userfiles/file/96352973365.pdfIn PDF document text
    • http://smartsecurity24.pl/userfiles/file/86071264002.pdfIn PDF document text
    • https://isgz.me/userfiles/file/pebawizevuwesoro.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/tgwjJlsMqHc/uplcv?utm_term=braun+smart+guide+5+modesPDF 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_off0000b8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B0 17176 bytes
SHA-256: f3d1d4bfe28ed1cef2866a8f434fabac00ce08cf8d7320027201f6d1d0c0a930
font_01_sfnt_off0000e545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE545 10832 bytes
SHA-256: d600b9038045c65b04dfd1a07d9bbba15689808198522dd7fedc81001d59d02b
font_02_sfnt_off0000fe1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336