Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3c4548cf5f05ac…

MALICIOUS

PDF

111.0 KB Created: 2021-10-09 22:20:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 02fca959ee8f68051b8b8fa6af0a96e1 SHA-1: ce038f36642d0b407b2ccd6320a8c1eac9db5671 SHA-256: 4e3c4548cf5f05ac36e8ca1b18224d199659160d1e8da651dbcaf92ec10c85f3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://candbco.com/ckfinder/userfiles/files/kafubojanutivizevut.pdf In PDF document text
    • http://bpsstudio.hu/uploads/mamuzunefebijegetoradokak.pdfIn PDF document text
    • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161339926cdc4d---43394544284.pdfIn PDF document text
    • http://darstin.com/userfiles/files/pejebejoten.pdfIn PDF document text
    • http://interstroy96.ru/uploads/files/buwelikinafisu.pdfIn PDF document text
    • http://ambulatorioveterinariomariani.it/userfiles/files/91906483752.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/zowiti.pdfIn PDF document text
    • http://milkyway-vn.com/upload/files/70930876928.pdfIn PDF document text
    • https://malashealthcare.com/userfiles/files/milijorigexigabobovinati.pdfIn PDF document text
    • http://savalis.ru/userfiles/file/laxazamibujorakawuv.pdfIn PDF document text
    • http://gartenstadt-apotheke.com/userfiles/file/29079063370.pdfIn PDF document text
    • http://aorganboys.handyfriendship.com/upload/files/50997794161.pdfIn PDF document text
    • http://numere-mopede.ro/mm/file/244239295.pdfIn PDF document text
    • http://spostojow.pl/userfiles/file/25411710195.pdfIn PDF document text
    • https://speculatio.in/ci/userfiles/files/78479752393.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e19d115688---kimituxoga.pdfIn PDF document text
    • https://global-product.org/CKEdit/upload/files/baworeloxefokid.pdfIn PDF document text
    • http://crestviewshopping.abwingsmd.com/uploads/files/vixorigenibirowogapa.pdfIn PDF document text
    • http://liqaa-lb.com/files/userfiles/files/ximulajepikukelokosavipi.pdfIn PDF document text
    • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/63547263329.pdfIn PDF document text
    • http://dtyxbpzx.com/filespath/files/20210923070133.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=intolerance+in+a+sentencePDF link annotation
    • http://forum-auto.ru/data/files/57861165470.pdfIn PDF document text
    • 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_off00014b30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B30 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00016347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16347 10172 bytes
SHA-256: 632dc9a6597d00e2d719f055a07cc3516dadd66b94e2712b85561d153fca3cd3
font_02_sfnt_off00017a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17A2C 20816 bytes
SHA-256: a3feff2ab3afeced0200cae0bea6d7c5cef3decc43e7147461d0002d4bf4d4e3