Malicious PDF — malware analysis report

Static analysis result for SHA-256 7828a2537e2a54e7…

MALICIOUS

PDF

79.6 KB Created: 2021-09-09 14:08:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: e698edfb52b54ef36d2e16a8dcc78c84 SHA-1: 349a6e28caeaa3183e3efd6105679676be2d9949 SHA-256: 7828a2537e2a54e7a9b792b7ef58ae37c6b53ccaaae5d82f99e445e0e4527f7f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://akbarestate.com/survey/userfiles/files/74360670338.pdf In PDF document text
    • http://www.trisad.kz/ckfinder/userfiles/files/jizaf.pdfIn PDF document text
    • http://abc-tel.ru/data/File/mezajoruxadigakopavit.pdfIn PDF document text
    • https://wwa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/mezesanegunef.pdfIn PDF document text
    • http://adhunikjewellers.com/ckfinder/userfiles/files/56512298876.pdfIn PDF document text
    • https://whitepalacegrill.com/userfiles/sogonikutabulina.pdfIn PDF document text
    • https://sibservis.com/ckfinder/userfiles/files/fadojixanifilenamo.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/a855eec94d687437e14569883fc0deb2/jisunevivazaz.pdfIn PDF document text
    • http://hkxhjfc.ltd/uploads/files/20210904200051.pdfIn PDF document text
    • https://tonymusic.se/UserFiles/files/kibux.pdfIn PDF document text
    • http://www.bc-arman.kz/ckfinder/userfiles/files/66215174404.pdfIn PDF document text
    • https://lifo-sea.com/ckfinder/userfiles/files/sodujilorusik.pdfIn PDF document text
    • https://megashina24.ru/files/files/dojedizalug.pdfIn PDF document text
    • https://2winit.com/Files/files/87252682862.pdfIn PDF document text
    • http://agmapure.com/upload/files/wewena.pdfIn PDF document text
    • https://korankertas.com/contents/files/15182588294.pdfIn PDF document text
    • https://netron.pt/app/webroot/media/files/91913265147.pdfIn PDF document text
    • http://liceoadultos.juniorcollege.cl/userfiles/files/43379419192.pdfIn PDF document text
    • https://aucordechasse.fr/vosImages/suborid.pdfIn PDF document text
    • http://salon-urody-bellis.pl/images/file/30716128037.pdfIn PDF document text
    • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/pazawubivuwamiputo.pdfIn PDF document text
    • https://gamepinleri.com/calisma2/files/uploads/86628551563.pdfIn PDF document text
    • http://lawngo.net/fckfiles/sawuzeloto.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=paid+seo+keyword+toolsPDF 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_off0000d558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD558 17216 bytes
SHA-256: b99c14a3b6be0d1cb06181028ede4e5a91ecfa623beadef697270229ff383ac6
font_01_sfnt_off000101a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000119bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119BB 10428 bytes
SHA-256: 8e1b06eeb5abf6ee5d40ae8ceb8c579f3af036d1df47bda454667606e8408d5f

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