Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7d7a66165f7329…

MALICIOUS

PDF

81.6 KB Created: 2021-09-03 07:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: cbee01e19c2e1e08cb4ac0abfe398ff2 SHA-1: 31733d5163c1ce6634c6dd4c9bcb00453cf49c2a SHA-256: cd7d7a66165f7329ba71e31a62e6f1dbb44a32e60b02f3c140f8b1ed1ba641ed
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160884da6b931e---35711919018.pdf In PDF document text
    • http://akicgiyim.com/userfiles/file/tigikinezawelomazavur.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1610aaa7d74abd---jejazuxafuli.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/44460909216.pdfIn PDF document text
    • https://www.babetravelling.com/ckfinder/userfiles2/files/17680236680.pdfIn PDF document text
    • https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/58c90663f8e48572e72875314d108415/3144097750.pdfIn PDF document text
    • http://taiwan-casters.com/userfiles/file/64093210949.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/93ed5ecfb32902b5c00f797ec91f73a8/vezusatabifedur.pdfIn PDF document text
    • http://oio.cn/uploadfiles/files/61160927091.pdfIn PDF document text
    • http://dansungsala.com/uploads/files/51885866374.pdfIn PDF document text
    • http://pwr-tech.ru/userfiles/file/bokeluseregepuju.pdfIn PDF document text
    • http://karthikeyanjayaram.com/userfiles/file/girenunewup.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16092d68d51188---zalil.pdfIn PDF document text
    • https://igruppe.no/ckfinder/userfiles//files/80348329289.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca981ee223---refufobenisen.pdfIn PDF document text
    • http://alfadent-volg.ru/images_uploads/files/91712982495.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160997f5590761---zinezenijir.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/d346fb1cb98165ccc75262a3b4d12d91/54602869783.pdfIn PDF document text
    • https://kurtoglumob.com/upload/file/zokolunasokezi.pdfIn PDF document text
    • http://dinskayarealty.ru/media/file/gajivegufob.pdfIn PDF document text
    • https://fishboat.hr/files/bibid.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/sstgjd986upmble3qrsb9cmmnn/vujilubivaradigimufojo.pdfIn PDF document text
    • http://nicenpos.com/userData/board/file/2179750343.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc24fae0f48---70949347533.pdfIn PDF document text
    • http://woodsfamilypride.org/clients/2/2c/2c83419adcf4927d74d3defe18342386/File/susiwas.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=conversor+pdf+em+jpg+onlinePDF 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_off0000d64d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ee5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5F 18908 bytes
SHA-256: 3d91f69ab7e2df0f244b21b293a8949599be5f5b8508725960c4b7e81326c953
font_02_sfnt_off00011fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD7 10808 bytes
SHA-256: f3e315e8668697cd596c2058c21e8cc9df733760f52566d1d78150d0f213d4b3