Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b68a2b1db54d279…

MALICIOUS

PDF

104.5 KB Created: 2021-08-09 07:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: bc9adb54cf662f0cf2f0a0cfb7f390e0 SHA-1: 3e64dfbd890d6ad1b808830e34b44d5e2b2b89e4 SHA-256: 2b68a2b1db54d279f1fb46e1f49b59b9795e21e63f9eb22a791867539c743a32
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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://catamma.ru/uplcv?utm_term=how+to+connect+logitech+k400r PDF link annotation
    • http://roocenter.ru/upload/file/22578748375.pdfIn PDF document text
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/b520bd030b038cc4164b624c1e75d4d8/60071088328.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/vh01q85urusb4jpkcr145f4135/23084418822.pdfIn PDF document text
    • https://megatex.ua/images/uploads/file/gagoruruboxokozoduji.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/kudibesaduluradomokeses.pdfIn PDF document text
    • http://clasesholandes.com/userfiles/file/tolegadeguwotanerodexevuk.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081a1b5694b3---jujodeluvonekodo.pdfIn PDF document text
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/fd418fc2b6426cf3e4561733f6a86a8c/66026156650.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160ab7df5d4430---58013520113.pdfIn PDF document text
    • http://farashimirooz.com/files/10055895155.pdfIn PDF document text
    • http://konemara.hu/userfiles/file/vejoganidiguj.pdfIn PDF document text
    • http://cnmrobotics.com/files/files/2196546189.pdfIn PDF document text
    • http://ninda.vn/userfiles/files/69618440426.pdfIn PDF document text
    • http://uk-finansist.ru/userfiles/file/11306780088.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/d70ef31f419c7ce47463b8cf13396f17/16550769752.pdfIn PDF document text
    • http://www.sport-konyv.hu/userfiles/file/redewigibumugumilazo.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a6e938588---piguseruvukelixizegofo.pdfIn PDF document text
    • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/9236b2bf47c1f6807b820e94644b6c97/makoku.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b84225807af---kilewumagixufojebu.pdfIn PDF document text
    • http://nagymester.com/userfiles/file/nijitariwovajav.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161004cb41c570---62734639897.pdfIn PDF document text
    • http://greenplanetnepal.com/userfiles/file/suzabazulegifozujidowamak.pdfIn PDF document text
    • https://www.wizzfizz.com.au/application/third_party/ckfinder/userfiles/files/92907632352.pdfIn PDF document text
    • http://almar-bus.pl/userfiles/file/4872852073.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_off00012b6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B6A 22680 bytes
SHA-256: 8254bc91bcf473beda08dddfa7f873ea2c951ac2c9684e186d0f91133b0760c9
font_01_sfnt_off000162f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162F5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00017b0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B0C 10548 bytes
SHA-256: 928daf7e9354bf8b5b79c5ae4978abd49bacf5583a5f04b3e98d194769c0814d