Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5df2afd0e4b8c0a…

MALICIOUS

PDF

81.8 KB Created: 2021-10-26 21:52:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: e6f052aeb30a7deb17d068a004eb96b2 SHA-1: f9f1cf412c5d4cc040b4317c89becbfe5c741a33 SHA-256: c5df2afd0e4b8c0ad50d3b4d22fe5f6a3d2301467823877abcfeffbe3b85faf1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://cortopolis.ar/userfiles/file/99311240828.pdf In PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dd809289fe---62899009148.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/zakevare.pdfIn PDF document text
    • https://ltes.tw-goods.com/UserFiles/files/rowivez.pdfIn PDF document text
    • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/nupuwamojifibobu.pdfIn PDF document text
    • http://glovimex.com/uploads/ckfinder/files/45426769279.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4f468e562---zeterufodo.pdfIn PDF document text
    • http://18554080.com/userfiles/file/nepowe.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/691b51d0faf6d09c7153e891579c5d86/visorowimode.pdfIn PDF document text
    • http://guides2alpes.fr/uploads/file/31283678065.pdfIn PDF document text
    • http://dayou.tw/uploadpic/files/202109050645244655.pdfIn PDF document text
    • http://tecresconsolidamentorestauro.it/fck_data/file/nodamowuposetiketatazuxo.pdfIn PDF document text
    • https://fainitelecommunication.com/public/editorfiles/file/kenorenudetelewabululuni.pdfIn PDF document text
    • http://designbeginnings.com/upload/file/zubenol.pdfIn PDF document text
    • https://latework.cz/soubory/juwolupuselosobedorobituf.pdfIn PDF document text
    • http://fatfailogistics.com/fckeditor/files/file/53502488812.pdfIn PDF document text
    • https://lekkermooi.nl/userfiles/file/27760418224.pdfIn PDF document text
    • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/161469a16b0bd0---28765562259.pdfIn PDF document text
    • https://salwangurugram.com/files/lusopogurudevedawupes.pdfIn PDF document text
    • https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/64915862489.pdfIn PDF document text
    • https://datenglagi.com/contents/files/vuxonivajozej.pdfIn PDF document text
    • http://akekaluck.com/ckfinder/userfiles/files/bekepizodo.pdfIn PDF document text
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/db826ef1945112e922d00a10b3db189b/molaneweta.pdfIn PDF document text
    • https://commonlawhouse.in/userfiles/file/vaditoloki.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/BcFPVxLj4jw/uplcv?utm_term=white+headed+waspPDF 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_off0000d8c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f0d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D9 19868 bytes
SHA-256: 10e67706c0c3898389a2795c121ed14f6bcf0e0f41f92dfdcc2f924aeede5fd4
font_02_sfnt_off00012303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12303 10200 bytes
SHA-256: bd52dbdc8bebbebfc8db400542dffc3cb620aaedf7d6432d3ae405d117af4a35