Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7a05d1945d3da5…

MALICIOUS

PDF

119.8 KB Created: 2021-10-23 18:03:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 70fc9df98e01fbc578f0103a4c7beafd SHA-1: 6fb2a2df2287132f0a03508baed66bf0d815f98c SHA-256: cd7a05d1945d3da513cb000df5cd9cc47e5f927f02e5006a0182992d113282b7
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 http://graviroz.hu/ckfinder/userfiles/files/mugoxokibosodixa.pdf In PDF document text
    • http://zekejozsef.eu/FCKfeltoltott/file/12533932057.pdfIn PDF document text
    • http://bhavalaya.org/ckfinder/userfiles/files/muravube.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1e78b8095---83469959171.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/161591ce133a4d---9914025639.pdfIn PDF document text
    • http://wsospice.org/uploads/userfiles/file/file/niwekuzetukukijuziwal.pdfIn PDF document text
    • https://talenthunt.biz/userfiles/file/9450175250.pdfIn PDF document text
    • http://seasonmediagroup.com/pic/file/62376667404.pdfIn PDF document text
    • https://rwd1.thadv.com/upload/files/85843995397.pdfIn PDF document text
    • https://www.bramfordgc.co.uk/ckfinder/userfiles/files/vibobu.pdfIn PDF document text
    • https://baoholaodong24.com/userfiles/file/pivavaleduzutukuwotapuse.pdfIn PDF document text
    • http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/kupineno.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1616269c4ddd69---19927350725.pdfIn PDF document text
    • http://maginsaatmetal.com/resimlerfiles/wufizesaruzesafaporuset.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/161322d48aa095---11883158779.pdfIn PDF document text
    • http://samarthservice.com/userfiles/file/vimosuxobimexomuv.pdfIn PDF document text
    • http://chipmax.in/chipmax/ckfinder/userfiles/files/20185690976.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/a04c6018718d4f82b027ee6f7215c332/99247001276.pdfIn PDF document text
    • http://bjavc.com/filespath/files/20210926060746.pdfIn PDF document text
    • http://paradisetnl.com/FileData/ckfinder/files/20210918_D280428704F3A859.pdfIn PDF document text
    • https://bisleriwheel.genefied.co/ckfinder/userfiles/files/fakusapekoladipepufuluv.pdfIn PDF document text
    • http://exteractif.fr/pictures/2/salizenotomopiwevipezo.pdfIn PDF document text
    • http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/pafodovudipope.pdfIn PDF document text
    • http://superfishinglewood.com/uploads/files/sisigotejiwevefegoxux.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/HTGXzuRVGb4/uplcv?utm_term=states+with+paid+family+leavePDF 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_off00016f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F81 18728 bytes
SHA-256: ea3bcd7f5d91ce7d9c895b13430e7e450d736a3cdd5b80807b0e3a4b7ffd4054
font_01_sfnt_off0001a02b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A02B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001b842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B842 10780 bytes
SHA-256: e7b35c911cf802215bbfa7bc38ceab5d264f6463861a25e9dff370b032cc5034