Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd79b71bfd838f98…

MALICIOUS

PDF

71.9 KB Created: 2021-12-14 12:03:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 2e6ef8c579023758ff2dfa16e48f8dac SHA-1: 2084794589fb9d8a0acf4a2d93481c95279d82e3 SHA-256: cd79b71bfd838f9813e8f6d3e0588b57c9c75921818b72dfae75a02f6639cbc7
166 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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://sunsetlearningcenter.com/userfiles/file/29416063903.pdf In PDF document text
    • http://373113.linker.tw/files/81119442405.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/o0ei1gp016jrpusi209dapc79n/7574763575.pdfIn PDF document text
    • https://weborder.cloud/userfiles/file///18794465938.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/3040946105.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/31518197874.pdfIn PDF document text
    • https://aecvfcom.nrgence.com/upload/userfiles/files/ximisitagamuxi.pdfIn PDF document text
    • http://parafiasadkowice.pl/pliki/bonalifowofubulalili.pdfIn PDF document text
    • https://pmrmhss.com/userfiles/file/nanonika.pdfIn PDF document text
    • https://lionkingbali.com/uploads/file/36156980643.pdfIn PDF document text
    • http://3qlohas.com/CKEdit/upload/files/widolumodogimigajod.pdfIn PDF document text
    • https://commonwealthsportsawards.com/userfiles/file/49804416970.pdfIn PDF document text
    • http://studiodugnani.it/userfiles/files/zaradotopuxuvuwuvi.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16191f53a974c9---rujinositudubakawuje.pdfIn PDF document text
    • https://tuinvandecruys.be/file/xomadetox.pdfIn PDF document text
    • http://baloneacessorios.com/_upload/file///nopugonavoribejeguti.pdfIn PDF document text
    • http://cloverdiamond.com/file/46878072880.pdfIn PDF document text
    • https://oilbasaro.com/web/images/ckfinder/files/20211121041926.pdfIn PDF document text
    • https://soportedevida.mx/ckfinder/userfiles/files/popalutiwanunuduwafefa.pdfIn PDF document text
    • https://12shio3.com/contents/files/fukudosibesu.pdfIn PDF document text
    • http://townofwinslowin.com/flash/townofwinslowin.com/file/zuxigifiviwonowewusan.pdfIn PDF document text
    • http://namhungholdings.com/uploads/ckfinder/files/kuregexurerogisuduwoj.pdfIn PDF document text
    • http://gmart-express.com/demo/uploadpic/file/pojopowataw.pdfIn PDF document text
    • https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/jekopud.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/87659142715.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/vItLtdF7Pec/uplcv?utm_term=canon+g2010+error+code+p07PDF 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_off0000b7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B4 16492 bytes
SHA-256: 8b2bc87a9d6e20917894d567d359c8e881d82c5cdaad8fd93b21b8fb0e29a51d
font_01_sfnt_off0000e299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE299 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000f93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93D 10660 bytes
SHA-256: 660dd81f1d6fe98b379d4ed0be43f54212a8d8cda5159c14a9a5dc1c0af83e51

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