Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c68943cc73768e8…

MALICIOUS

PDF

77.9 KB Created: 2022-04-08 23:56:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: af1ef2c697758bc8d2ecc3a4710e3f4d SHA-1: d93d73eed49c13602269beed6fac67cbda3c46bd SHA-256: 6c68943cc73768e86c510cafb73851925105e9891aae41a005af5f63138305b6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

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://apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/9917483932.pdf In PDF document text
    • http://friulanamarmi.it/images/file/koxolumowegadarerewobuk.pdfIn PDF document text
    • http://phutungvespaco.com/luutru/files/80267654759.pdfIn PDF document text
    • https://nokabukewodujam.weebly.com/uploads/1/3/0/9/130969525/tejep.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16211c7729f8b2---36093587494.pdfIn PDF document text
    • http://krajcsovicz.hu/kcfinder/upload/files/34134173392.pdfIn PDF document text
    • http://drivescuolaguida.it/userfiles/files/benuv.pdfIn PDF document text
    • https://disipewadapa.weebly.com/uploads/1/3/4/8/134870645/nitanunixitupom.pdfIn PDF document text
    • http://islamsamara.ru/upload/files/22149509098.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/78277400984.pdfIn PDF document text
    • http://bienbao.net/uploads/files/19986134583.pdfIn PDF document text
    • http://zxpgw.com/userfiles/file/29862632497.pdfIn PDF document text
    • http://obuchenie.bititechnika.com/img/file/27078674215.pdfIn PDF document text
    • https://ginuviwimoxu.weebly.com/uploads/1/3/6/0/136098452/1b55e8b062.pdfIn PDF document text
    • https://shihlin-th.com/ckeditor/userfiles/files/39987355742.pdfIn PDF document text
    • http://www.bandicka.cz/upload/files/binorokuguvinemawajumu.pdfIn PDF document text
    • http://metaphorcreators.com/kcfinder/upload/files/49662319564.pdfIn PDF document text
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/72055817921.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/a1f6e738afdfb63b966dd5bd35ef301c/80268827931.pdfIn PDF document text
    • https://nirkongrp.com/ckfinder/userfiles/files/fojibodofasipazo.pdfIn PDF document text
    • https://xoselobukakuri.weebly.com/uploads/1/3/4/4/134498653/jujamumun.pdfIn PDF document text
    • https://jedzenie365.pl/ckfinder/userfiles/files/98025150716.pdfIn PDF document text
    • https://vejwun.cz/images/58062703721.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623a7cdb2b2b2---81334881633.pdfIn PDF document text
    • https://cankayapsikoteknik.com/kcfinder/upload/files/wifegumokamataxomob.pdfIn PDF document text
    • http://jingkangchem.com/upload/files/gugafu.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=why%20is%20my%20breaker%20blinking%20redPDF 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 extracted file (font_00_sfnt_off0000cb6b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cb6b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB6B 17060 bytes
SHA-256: 76a3ac73576db7fc6643d386db4383bfc4e0ba93512d00a3da653fbfaad010c0
font_01_sfnt_off0000f802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF802 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11019 10816 bytes
SHA-256: 581d7a0ac7bd089a0da03f3cde25639840beb229d8bdd7414f9487b40158188d