Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8fe97343825d00…

MALICIOUS

PDF

78.5 KB Created: 2021-09-12 04:31:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 5ec455523a86f850a6e4c072bcf0e72c SHA-1: 24f2019fb6eecdff2cf3fe3c582aa387ed6fe4ae SHA-256: 5d8fe97343825d00ad1f49de82da87be3921ebadc170b5ff7caeabbb8820c449
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://vocal.bpv.su/content/files/files/68604628569.pdf In PDF document text
    • http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/83433200579.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec51c7b128---bokaxo.pdfIn PDF document text
    • http://studiotecnicodavico.eu/userfiles/files/fuwepugewewimikezuxalu.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/14266790008.pdfIn PDF document text
    • https://www.comperat-89.fr/ckfinder/userfiles/files/12243628494.pdfIn PDF document text
    • http://juditphotography.com/picture/userfiles/file/17033226335.pdfIn PDF document text
    • http://baaningdoi.com/file_media/file_image/file/52229604062.pdfIn PDF document text
    • http://ipea.kr/userData/board/file/kifazifovuxosoxatajanaxew.pdfIn PDF document text
    • https://foursservices.com/nbloom/fckuploads/file/54292208291.pdfIn PDF document text
    • http://emailreceptionist.net/userfiles/file/63582495789.pdfIn PDF document text
    • http://chinazzjx.com/d/files/25368151935.pdfIn PDF document text
    • https://www.afoa.org.ar/backend/ckfinder/userfiles/files/zibosivimarekud.pdfIn PDF document text
    • http://paulgraphics.paulsfashion.in/files/75842610517.pdfIn PDF document text
    • http://vikohasanfiber.com/upload/files/81448380415.pdfIn PDF document text
    • http://carshopm.com/js/upload/files/vimug.pdfIn PDF document text
    • https://apz-arte.com/ckfinder/userfiles/files/mikawosigum.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd150e568b---korojebamemajesal.pdfIn PDF document text
    • http://greenhousehotel.vn/uploads/image/files/47287473004.pdfIn PDF document text
    • http://szm.hu/userfiles/file/15831041865.pdfIn PDF document text
    • https://sfeerweter.nl/userfiles/files/8486162105.pdfIn PDF document text
    • https://shih-tzu.ro/files/file/guleporufukefajokapek.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=keep+audio+playing+in+background+androidPDF 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_off0000cbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE4 10860 bytes
SHA-256: 0530aa2cef349a35a5e7f50ad7946c20b186fe342176c7c59d861620f916a7d0
font_01_sfnt_off0000e496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE496 17992 bytes
SHA-256: 079a71cca3167f92eaa45ef7e45007f10749b2f0ead8ea86f6005e85e18d8194
font_02_sfnt_off000113dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113DC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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