Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd8aad6d7efa2e0…

MALICIOUS

PDF

91.3 KB Created: 2021-06-25 19:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: d507ddddd69d372b8edfa6448d54f730 SHA-1: 66ddcf27fb77c15f4fa3122117c26f68ef74fba9 SHA-256: 3dd8aad6d7efa2e08760bf422df0c34b2b2f753c307129247eef4363b66581c7
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://pixomot.ru/uplcv?utm_term=the+rolling+stones PDF link annotation
    • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160c5e6a6d0019---jexin.pdfIn PDF document text
    • http://axwelindia.com/uploads/pakakoxituropedif.pdfIn PDF document text
    • https://autoandtruckrepair.net/nbloom/fckuploads/file/23977569029.pdfIn PDF document text
    • http://blbr365.com/userfiles/file/1622890975.pdfIn PDF document text
    • http://kursadowicz.pl/Upload/file/33302478882.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/q05vaqbb5hb34ifg0sjqhdmq4a/12703938730.pdfIn PDF document text
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/f41a4ab7e9820b767b658f3c5669d1b1/77698719822.pdfIn PDF document text
    • http://vtvxm.vn/userfiles/file/resukoveze.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609d400e57423---rixopifokano.pdfIn PDF document text
    • https://ljlconst.com/admin/images/file/ruxijuzavinosulovatadev.pdfIn PDF document text
    • http://sugarfree-gelato.com/upload/file/gozazumerokibunej.pdfIn PDF document text
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/4de4fcad905caecef87eaeb334ef52be/33636449983.pdfIn PDF document text
    • http://vejwun.cz/images/xujefafiwuguj.pdfIn PDF document text
    • https://aimhc.com/userfiles/file/44567136800.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/dadetokoso.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082879ec71e6---8819206413.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160808c32900f8---75476438473.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985b111e44e---xibaruxojow.pdfIn PDF document text
    • http://sam-global.info/files/file/lanekajawimizaj.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c37a3f22294---15895619745.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/6088a288db7e20adbd1317b9843201f1/somuxuxoloruzagabifupuseb.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f622db2df2---boworejokulilidoleru.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_off00010390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10390 17372 bytes
SHA-256: f6073ce339376eb029150dac2d716a61ea9401f0f1cff7794ad0a2bb26bb3b58
font_01_sfnt_off0001313c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1313C 10188 bytes
SHA-256: 739fd4fa7687e4d5f36aa89a7911b99db2ac9e67fcc8e57dac4016a917fc2cac
font_02_sfnt_off000147fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147FE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1