Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3eb856d599d38df…

MALICIOUS

PDF

82.2 KB Created: 2021-09-11 00:38:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: aedc6d499bb2f3bdb8b0ec4b31c8d700 SHA-1: 5dc7b23a200e31b3ef8718b09c8f7840ff883489 SHA-256: d3eb856d599d38df7a278c0ecdb0a134050632699605b0bbdced3791a7a0470e
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 https://coretry.ru/uplcv?utm_term=rope+hero+vice+town+free+play PDF link annotation
    • https://ikansambel.com/contents/files/20429022196.pdfIn PDF document text
    • https://aadharshilaschool.org/userfiles/file/wunuxedupidafaxejegun.pdfIn PDF document text
    • https://togeltop.net/contents/files/wovanijafuzalitoj.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/cm1a6bbokber01k0u8venbgnju/dakajiz.pdfIn PDF document text
    • http://www.biogreeno.com/cms/ckfinder/userfiles/files/67288344660.pdfIn PDF document text
    • http://jobcred.com/rk/jobcred/uploads/image/file/82678833797.pdfIn PDF document text
    • https://butterfly-propertymanagement.com/userfiles/file/soxobiten.pdfIn PDF document text
    • http://yoshitomo-kokubunji.com/jcfiles/file/81320455304.pdfIn PDF document text
    • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/4045040e3e38599480aaca73cec794f9/jogutotavazur.pdfIn PDF document text
    • http://phaptangpgvn.net/app/webroot/upload/files/35608579296.pdfIn PDF document text
    • https://avenue102.com/uploads/file/35188650845.pdfIn PDF document text
    • http://v-lukomorie.com/uploader/files/3762255863.pdfIn PDF document text
    • http://hanauhrova.cz/files/fugotogaloref.pdfIn PDF document text
    • http://ingenermarket.ru/userfiles/52357558685.pdfIn PDF document text
    • https://hotelgaric.com/upload/datoteke/betodetubejilewov.pdfIn PDF document text
    • http://www.enredmail.com/templates/files/idCliente_/file/tokugemazabubatikinima.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/4rp67fkop9t1t879g1176bus85/kurira.pdfIn PDF document text
    • http://e-restauracion.com/app/webroot/files/uploads/files/navobagilate.pdfIn PDF document text
    • http://vektor-bezpeki.com/userfiles/files/zefal.pdfIn PDF document text
    • http://schturman.ru/files/files/7281335823.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613af3c2d5fe9---8710149977.pdfIn PDF document text
    • http://coomargroup.com/ckfinder/userfiles/files/35529020255.pdfIn PDF document text
    • https://propactionvehiclesuk.tv/userfiles/files/depisesamutu.pdfIn PDF document text
    • http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/ragazuxetagowibiwuxu.pdfIn PDF document text
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab6b15ba64---20997236926.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_off0000dd93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD93 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A5 17304 bytes
SHA-256: cc13cd261ac1c145032ebfe4c09a7502ae6940cae91fcf44a86eb85691ec28ba
font_02_sfnt_off000122c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122C1 10720 bytes
SHA-256: f0fc29b7afca332167823e29a49563d2f962d7bb09b617a88bc271905877b56f