Malicious PDF — malware analysis report

Static analysis result for SHA-256 af260a2e256c6bf5…

MALICIOUS

PDF

105.9 KB Created: 2021-08-02 21:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 2b60da623fb2e6c336878da398750982 SHA-1: 05e8c2840c091aadaa47d5dc640a6b561413392f SHA-256: af260a2e256c6bf5d7628185cb5eabaa6a2973ffc1f6b24520ea1f6de40364e3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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 https://wastran.ru/uplcv?utm_term=temperature+of+dog+in+labor+in+celsius PDF link annotation
    • http://111-orte.de/testarea/cwsCMSlight/media/files/nukepeti.pdfIn PDF document text
    • http://jongauger.com/userfiles/file/88434106014.pdfIn PDF document text
    • http://batterseataxi.com/survey/userfiles/files/31846531855.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a223b165de0---50477365047.pdfIn PDF document text
    • https://bem-sa.com/img/file/96943608226.pdfIn PDF document text
    • http://kirakuramen.com/uploads/files/79507710613.pdfIn PDF document text
    • http://simkoongschool.com/uploads/editer/files/wikalunaxova.pdfIn PDF document text
    • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/b2fa1dbe1fe5f69629274f20b7b22925/zagimivuxo.pdfIn PDF document text
    • https://an-professional.ru/img/files/file/mepokuxozasevim.pdfIn PDF document text
    • https://altonika.pro/files/fck/file/63628496143.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be5435f0e1a---pokon.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093accf3e2b6---pupalafeporuwi.pdfIn PDF document text
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/1fdc9f202cbb63505c1c5dd1c2fae9e5/42560280344.pdfIn PDF document text
    • https://wegofa.com/userfiles/file/68287464361.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/4d568c4ae030dc5a24c572e9b862d7a5/babenafetesepukomud.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8b0251289---18623669399.pdfIn PDF document text
    • http://profil-metall.de/content/uploads/file/73485727480.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f901c0f734---67706152225.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e1094db34---74161184519.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb2fecfc79---boxubivabo.pdfIn PDF document text
    • http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/xetitobaruxevedazusutunas.pdfIn PDF document text
    • http://suseefinance.com/userfiles/file/75372126594.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/91drglh8pa97eer7tdrf2phddj/tagujuzukuxonogubo.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_off0001393e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1393E 11168 bytes
SHA-256: db668b20c21052fe638653310cb887537d10b47ce8bf6844835847060f25c2fa
font_01_sfnt_off000152d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152D6 17780 bytes
SHA-256: 749a3d7367b8a85d6d83a2b98a840a1f580a4c9208f499a380cebb7dac177f44
font_02_sfnt_off0001813c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1813C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1