Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d83addfacf499de…

MALICIOUS

PDF

70.0 KB Created: 2021-10-04 09:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 64e11b84684bb3a6b486be4b36cc5f4d SHA-1: 1a0dba810c8e1c5452187a855f617b0adfcffdc6 SHA-256: 5d83addfacf499de3e3936b247a3cdc7bf37a566f56d4bf2d6bd007f3519200c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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://noursportevents.com/wheelmarine/userfiles/file/gulugavepumefowus.pdf In PDF document text
    • https://299-45.com/CKEdit/upload/files/47543843128.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161443c898d24d---15115395358.pdfIn PDF document text
    • http://groupementpecheduloir.com/ckfinder/userfiles/files/54291195466.pdfIn PDF document text
    • https://www.weboonline.com/ckfinder/userfiles/files/foxejag.pdfIn PDF document text
    • https://thailonghoang.vn/upload/files/rirewamonunu.pdfIn PDF document text
    • http://31app.com/userfiles/file/lemamifisu.pdfIn PDF document text
    • http://landpas.pl/upload/file/15289143685.pdfIn PDF document text
    • https://foodbiz.bdata.link/upload/files/25415314127.pdfIn PDF document text
    • https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/47080543238.pdfIn PDF document text
    • http://mousike.it/img_ins/files/16262481381.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/1ffdaa6e2a3ba46d5512c3c16533547f/22985322772.pdfIn PDF document text
    • https://mn-lawfirm.com/box/userfiles/file/6825700008.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e76a4a0c0---69541991401.pdfIn PDF document text
    • https://vietnaminsight.biz/ckfinder/userfiles/files/27703407672.pdfIn PDF document text
    • http://gift-founder.com/archive/upload/files/8289889421.pdfIn PDF document text
    • https://readandenjoy.ae/userfiles/files/fatim.pdfIn PDF document text
    • https://metrosecuritynepal.com/assets/userfiles/files/pudipoledonaderus.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161418028d7fc6---zijavixupumexipewosebagut.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413844b8290---fenulokuminasogodu.pdfIn PDF document text
    • http://sanyosushiglendora.com/uploads/files/surenug.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614032d3e2a04---14235747669.pdfIn PDF document text
    • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/70855559930.pdfIn PDF document text
    • http://zabradli-znerezu.cz/userfiles/file/zuremume.pdfIn PDF document text
    • https://o-dance.com/upload/files/parijenag.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=privacy+video+lock+app+downloadPDF 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_off0000b13a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB13A 15624 bytes
SHA-256: b457dda8812296a38ab96968ba35c5e3d78d29307b3f6161a3cf20586e08cd93
font_01_sfnt_off0000d894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD894 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AB 10600 bytes
SHA-256: 7a0ec31fa1dc82bbf3a7e48c0608f5dc60b2307738bc674ae82a4bb46c3fc067