Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5ddb03034a4516f…

MALICIOUS

PDF

70.9 KB Created: 2021-09-25 23:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 5b59198b0d104d3cf1fb688f50a7a4aa SHA-1: c819ad43467f820a65b3df7161f69dad886e6218 SHA-256: c5ddb03034a4516fb4a1b4b8644e7d37a5a4eb7261b4543d0050a52e633aa00c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 http://jinistudy.com/_UploadFile/Images/file/17252240295.pdf In PDF document text
    • https://alkalacarservice.com/public_html/userfiles/file/38797632038.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144e4958ecbc---jefajuwafarixagolemurof.pdfIn PDF document text
    • https://cabsfromheathrow.com/userfiles/file/33936754799.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614e3677b3d41---defigujulana.pdfIn PDF document text
    • http://hasadtemizlik.com/upload/file/65035026266.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/57340075453.pdfIn PDF document text
    • https://rawoctane.com/uploads/file/3192196800.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147278365ebc---63750661700.pdfIn PDF document text
    • https://shih-tzu.ro/files/file/537242554.pdfIn PDF document text
    • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133144b6546d---39456805887.pdfIn PDF document text
    • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/6dd2123a56c0a9b7774b7879f8d68d01/mitudivevadunuwomom.pdfIn PDF document text
    • http://sdtrafficticketlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wenabubisur.pdfIn PDF document text
    • https://fond.ru/userfiles/file/36738012895.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16141376937d22---vorejelokonazarajunof.pdfIn PDF document text
    • https://equantumconsulting.com/files/files/rolonifomevesajuzazedo.pdfIn PDF document text
    • https://tttinox.com/upload/userfiles/files/42902812690.pdfIn PDF document text
    • https://jasz-pap.hu/UserFiles/file/telaredude.pdfIn PDF document text
    • https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/lajikori.pdfIn PDF document text
    • http://www.synagoge-stommeln.de/ckfinder/userfiles/files/63426874167.pdfIn PDF document text
    • http://tyros-club.de/userfiles/file/tavevodisikufal.pdfIn PDF document text
    • https://butzbacher.turnpoint.jo/app/webroot/upload/files/dulofonefusotelagarogaf.pdfIn PDF document text
    • http://takramaipai.com/mypicture/file/78149355637.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0f75bf33f---gibosedufenotaxapebu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=popcorn+mod+apkPDF 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_off0000b2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2F2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cb09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB09 10232 bytes
SHA-256: ba7aefc5b83175e1c2af35cd670f7207287dcd50820c047995289b2a83fb5d96
font_02_sfnt_off0000e1f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F0 17316 bytes
SHA-256: 28d2d8207684806db3ed86a1e592d0f6a340677c5f627438a3398758458a2670