Malicious PDF — malware analysis report

Static analysis result for SHA-256 7820cd00275306c6…

MALICIOUS

PDF

82.2 KB Created: 2021-08-17 03:58:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: b22d87a3d265c0e3ca763f49c0052273 SHA-1: 39175106c4b43f370a08c1cde2f9703ccb7af06b SHA-256: 7820cd00275306c69229de8519c1be26836c3d38f038b475613655f4b5919ddc
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 https://rpdev.org/ckfinder/userfiles/files/faximafimifuzinezavi.pdf In PDF document text
    • http://vamaconsulting.sk/userfiles/file/51902785020.pdfIn PDF document text
    • http://elite-nails.pl/Upload/file/vakenutozu.pdfIn PDF document text
    • https://deltarealestate-eg.com/userfiles/file/zupujemefozawizu.pdfIn PDF document text
    • http://lingeriedediva.com/UploadFile/file/2021081210424473499.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/18a20d54cc0155c0309ca27b85e94c17/ritipenowewovikap.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/ed07e946043352ebe8aec30363846bf9/lujetigumag.pdfIn PDF document text
    • https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/a601d0086ad5f98973c7883426a3c995/dowubuzezufapokexawa.pdfIn PDF document text
    • https://mfdesign.hu/files/file/69164666575.pdfIn PDF document text
    • http://rexant.by/upload/editor/files/1110271547.pdfIn PDF document text
    • http://desagresbrts.com/clients/34568/File/45355039041.pdfIn PDF document text
    • http://olddieselparts.com/ckfinder/userfiles/files/diwoxadokiz.pdfIn PDF document text
    • http://meyergarden.com/ckfinder/userfiles/files/rupujezubimetiluvut.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16097ce7b3867e---86024883348.pdfIn PDF document text
    • http://salonorganica.ru/upload/files/xajoxafawekeman.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/1b86e47158a7bf631a840599685f25c0/jusexi.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/bd017742a47b0329ef28dd444811e321/laxusubewiwarifevafap.pdfIn PDF document text
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/3a78fda6559aeeedcd14ec1f77f4fa30/27260831742.pdfIn PDF document text
    • https://info-jimukyoku.jp/lot/upload/files/xuwediwawogizisawifepulez.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9586c95a80---rokopejak.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/c3cd3d733601e5204c119b8386b358cd/gufizijeba.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/47328942357.pdfIn PDF document text
    • https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/ffu0bq7tkt46f0h8nlks87kvth/81655535889.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=united+technologies+corporation+headquarters+addressPDF 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_off0000db9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9B 17552 bytes
SHA-256: dee3789b391e2bc27189e48eb39519e7c64a3f08909f039b62e7afe6d444021a
font_01_sfnt_off0001098c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000121a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121A3 11044 bytes
SHA-256: c8237a2e42b6f1dc805ebc1f7d666e6d5d2509ff5614e1226d265970c637b74d