Malicious PDF — malware analysis report

Static analysis result for SHA-256 9414cd4fed67f9fb…

MALICIOUS

PDF

69.4 KB Created: 2021-08-31 12:02:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 1334ca58af04d1e8e6eb4ea7cea89bb1 SHA-1: fdb03bb3613062dc3d9407b4363108f28173ed71 SHA-256: 9414cd4fed67f9fb9fa4d769e464c665a110984c1ca03b2722049e88ca48e412
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 5

  • 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://oniceh.ru/uplcv?utm_term=self+regulation+in+education PDF link annotation
    • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/16093f4fda213c---bububazavodozojiwib.pdfIn PDF document text
    • http://smflow.in/admin/uploads/file/pijakigidubigux.pdfIn PDF document text
    • http://gursakaryahukuk.com/images/file/53420187226.pdfIn PDF document text
    • http://ty-int.com/files/files/fomideniverixipu.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/nizenuripolawonujapatawa.pdfIn PDF document text
    • http://gewald.ru/content/Files/vifavovisivabefipidejoxe.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160701430628ee---dobiw.pdfIn PDF document text
    • http://thallo-food.hu/uploads/ckfinder/userfiles/files/pokosejelasuposokabi.pdfIn PDF document text
    • http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/64953524952.pdfIn PDF document text
    • http://yuc-fac.com/uploadfiles/20210703121912.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/5refd7s6cqkd7oakmt3famcikj/pevela.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072db147c719---bunijilidurodo.pdfIn PDF document text
    • http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff7ee36e82---12593470775.pdfIn PDF document text
    • http://artbaget.net/admin/ckfinder/userfiles/files/42749589851.pdfIn PDF document text
    • http://thedreams.cz/files/94307440845.pdfIn PDF document text
    • http://vintageguitar.ru/ckfinder/userfiles/files/10196215591.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f39e4a5fe---24647981159.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/467b6b37b333eaba5732a67f575dd3a0/14255344124.pdfIn PDF document text
    • http://dbcasagayathottam.org/assets/uploads/cms_images/files/88120813422.pdfIn PDF document text
    • http://arcadia6465.com/clients/f/fc/fcac8d81e62e7f23ed02b02243def538/File/49313757170.pdfIn PDF document text
    • http://aweibel.com/Photo/file/86834146993.pdfIn PDF document text
    • http://mmprogetti.it/userfiles/files/91038835801.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/jf7fpkcptqqij6uv8uga2buv28/2946149731.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_off0000b28b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB28B 14856 bytes
SHA-256: 4c96b4007486e80d0f67763c086a28a696be896295577815858b38b9ca82c10e
font_01_sfnt_off0000d7e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000effa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFA 10660 bytes
SHA-256: 4421580308bbfdb5899c6908aea89e1c842ec81078c8d522567a1e199ddb492c