Malicious PDF — malware analysis report

Static analysis result for SHA-256 63413114850a696c…

MALICIOUS

PDF

80.5 KB Created: 2021-09-16 11:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 69dca027a62f71810656da9b9d7722d3 SHA-1: 4f06fafe8e622bb8bd15c2e5632ac45276b67d46 SHA-256: 63413114850a696c99b123ed4ba5c47ec5734e3346c21b6383287d76ad9621c3
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ketchas.ru/uplcv?utm_term=root+6.0+apk In PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b91ce0b19e---pejozowiludibafu.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1612fa99a6eb25---27747251260.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f56ee8b78e---98695477151.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/c3c5a2bee66087597c568a1702487744/22316200758.pdfIn PDF document text
    • http://missteenqueenuk.com/userfiles/file/sifujerodemifikunozuzes.pdfIn PDF document text
    • http://noithatsah.com/webroot/img/files/51816756148.pdfIn PDF document text
    • http://thy-environment.com/userfiles/files/mabet.pdfIn PDF document text
    • https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/790508996.pdfIn PDF document text
    • http://mistral-paints.cz/userfiles/files/bizofozisuvatepevoxola.pdfIn PDF document text
    • https://trinityautorepairs.com/uploads/files/36801190380.pdfIn PDF document text
    • https://zzhqhi.com/d/files/95344357425.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613390f09e5a1---24393326821.pdfIn PDF document text
    • http://peaceinsrilanka.lk/userfiles/file/42351763185.pdfIn PDF document text
    • http://svsteinfurth.de/radsportfiles/file/rejefekex.pdfIn PDF document text
    • http://cga82.com/admin/File/19175782758.pdfIn PDF document text
    • http://omni-links-europe.com/images/blog/file/vasagitoxawuvumonerixiwiw.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/xisipebigerivatanavad.pdfIn PDF document text
    • http://paillasse.hu/userfiles/file/gexunuwixipufif.pdfIn PDF document text
    • http://duocthientam.com/uploads/ckfinder/files/rurusegipuloxoredetuwitef.pdfIn PDF document text
    • http://seychelles-resort.com/images/blog/file/24939502661.pdfIn PDF document text
    • http://ckrestaurantgroup.com/ckfinder/userfiles/files/sofodugedoperojineze.pdfIn PDF document text
    • http://ppfi-online.com/userfiles/file/86485261737.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161331d45c150f---mabaxivabajarid.pdfIn PDF document text
    • http://lightningriskassessment.com/ci/userfiles/files/bivedamevupesonibaliba.pdfIn PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/guvulademugifuleder.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 extracted file (font_00_sfnt_off0000cebc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cebc.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBC 21432 bytes
SHA-256: 32dd3ef18c281161957b0bae56a5bb1d9da3d860a796e340024eba2cf50fab22
font_01_sfnt_off000105e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E4 10096 bytes
SHA-256: a73a7ef5f6cfbd2f6497ed313b8f0440b98b1ba6ed44cf91545231f58bce8177
font_02_sfnt_off00011c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C95 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1