Malicious PDF — malware analysis report

Static analysis result for SHA-256 47880a50f974c549…

MALICIOUS

PDF

82.6 KB Created: 2021-10-13 11:55:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: ea37ddc3720cd980daf42537fce24958 SHA-1: 1c1beea83fead4f7bee0fe3034aa224da985b4e2 SHA-256: 47880a50f974c549a3b497ffc092d29209f1740dc345de89ab832a221edad9cd
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://trinitysportsandleisure.ie/userfiles/file/refufom.pdf In PDF document text
    • http://kiavysocina.cz/UserFiles/File/20121458908.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/7a68568abdcc534c0c07878487f46ba0/67368242790.pdfIn PDF document text
    • http://infinijewelry.com/userfiles/file/33171860787.pdfIn PDF document text
    • http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/finumirapegezobepetukapox.pdfIn PDF document text
    • http://dobermanncz.eu/files/57580072451.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/wefudobagikujumegatamopaw.pdfIn PDF document text
    • https://ilo.tasksplan.com/userfiles/files/lodijokasaburuvadu.pdfIn PDF document text
    • http://sov.tranovice.cz/webpagebuilder/ckfinder/userfiles/files/86169678706.pdfIn PDF document text
    • http://premiercontainerlines.com/media/ftp/file/wowumosek.pdfIn PDF document text
    • https://stradatextiles.com/upload/ckfinder/files/xubofefovobiviguzovek.pdfIn PDF document text
    • http://cnsgawefgl.netsociality.com/upload/files/42032172032.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16131dd3574668---52414098057.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/mvrnp6gekk4udsjnip8c2agssk/94011013620.pdfIn PDF document text
    • http://pazzo.jp/js/upload/files/dixamuzolotavipanipuvir.pdfIn PDF document text
    • http://beamstraffic.ae/amb/userfiles/file/30766077615.pdfIn PDF document text
    • https://ip-kamera-rendszer.nuttydog.hu/ckfinder/userfiles/files/62381963355.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1615d226a6e927---56934357096.pdfIn PDF document text
    • http://dieutrimun.myphamkangnam.vn/webroot/img/files/9129098523.pdfIn PDF document text
    • https://www.l-games.jp/js/ckfinder/userfiles/files/36286329713.pdfIn PDF document text
    • https://wintechindia.in/ckfinder/userfiles/files/duwefaviletumerozanow.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/ve12kde47u7kntv2pu10mvoci5/dabatetepovimudonowegukeb.pdfIn PDF document text
    • https://onecre.com/images/content/files/21485319578.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RC0zOYPQW8A/uplcv?utm_term=waking+up+on+the+wrong+side+of+the+bedPDF 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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA53 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF265 18812 bytes
SHA-256: 9527c3addc45eb71a9706ddaebfa2450535035bd85c1738e3f40cdab80ee51fb
font_02_sfnt_off0001231a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1231A 11144 bytes
SHA-256: f0fd8a44052a85be63eb0fc9ec37dd91917907e8833d7803deff616d10a1b85a