Malicious PDF — malware analysis report

Static analysis result for SHA-256 78203df8f38fe3cd…

MALICIOUS

PDF

84.8 KB Created: 2021-09-19 09:31:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 2a5c79b77ad05d0c9f71314001502c43 SHA-1: 740d7c015102e69a64093a55c36af70e50716e20 SHA-256: 78203df8f38fe3cd337adb030b400c8ca4307aabdab6397508d2b3bf25466f8c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pilatesmystyle.com/userfiles/files/sireb.pdf In PDF document text
    • http://logicparcel.net/uploadsEditorfile/jowadewajodogumunikupugil.pdfIn PDF document text
    • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146bdc3975fa---noxaxanozeweromari.pdfIn PDF document text
    • https://dragonexpressml.com/userfiles/files/pukux.pdfIn PDF document text
    • https://sibconsulting.com/contents/files/51580570354.pdfIn PDF document text
    • http://kirche-treuen.de/UserFiles/File/fosigeze.pdfIn PDF document text
    • http://akgwealthplanner.com/crm/files/29918682212.pdfIn PDF document text
    • https://maria-galland.ru/files/file/10775515928.pdfIn PDF document text
    • https://mallorcaboom.com/res/wysiwyg/file/kigaw.pdfIn PDF document text
    • http://proxima-design.cz/files/file/durenugizumi.pdfIn PDF document text
    • http://haraj-alqunfudhah.com/userfiles/file/sozokebixepap.pdfIn PDF document text
    • http://3dprofi.net/images/uploads/file/97946301275.pdfIn PDF document text
    • http://neoclassicalmansions.com/uplds/file/96203067700.pdfIn PDF document text
    • http://caudafotografia.com/userfiles/files/97096925394.pdfIn PDF document text
    • http://cantinachitarra.it/userfiles/file/42238875615.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cef4a3270e---xijuxu.pdfIn PDF document text
    • http://dreamwith.gni.kr/ckupload/files/51905322654.pdfIn PDF document text
    • https://mepho.hu/ckfinder/userfiles/files/bibafopolerutasetowitilov.pdfIn PDF document text
    • https://hyosungulf.com/uploads/file/40601158267.pdfIn PDF document text
    • http://taiwan-tsai.com/upload/files/migopudatimumofad.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/hrn2gjdmm4r4ivgqs94a8dfcge/46054594302.pdfIn PDF document text
    • http://alarm.pl/userfiles/file/wubatizamogunapaj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=things+to+build+in+creative+minecraftPDF link annotation
    • http://e1pl2.nazwa.pl/busy/fotki/file/55859720074.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_off0000e832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE832 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10049 11192 bytes
SHA-256: e38ff7c94b145c21296da56de38ee6370158507d07bc5f0ee24728eb096d08bc
font_02_sfnt_off00011a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A15 16612 bytes
SHA-256: 7767d7f55a8fdaf0fcb472459976cfb642c501dfdae841b175670aa59d72374b