Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fbf2767e35ec18…

MALICIOUS

PDF

73.5 KB Created: 2022-04-10 01:02:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-19
MD5: 1b81607f85509d875795e8a7ab280d35 SHA-1: 50b110156cc05941d6e454ff764294257571ab84 SHA-256: 26fbf2767e35ec1836437724ad370f1f1860d393d439f0e358614d093ca58571
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/bb251971171a682ce36091faa3dc4dd1/gowus.pdf In PDF document text
    • https://lisijinawap.weebly.com/uploads/1/3/4/7/134740049/327db6.pdfIn PDF document text
    • https://soxotinimom.weebly.com/uploads/1/3/4/8/134883838/7a5a8e3aff7.pdfIn PDF document text
    • https://rinosebamajipem.weebly.com/uploads/1/3/4/6/134694393/8bbce6.pdfIn PDF document text
    • https://joziwofu.weebly.com/uploads/1/3/4/0/134012586/xomozujij_zanamudome_reziwusokewi.pdfIn PDF document text
    • https://oksushidelivery.cl/sitio/public/files/file/29286953294.pdfIn PDF document text
    • https://zavegaligap.weebly.com/uploads/1/3/4/4/134499553/reximadaparur.pdfIn PDF document text
    • https://leboxinadevot.weebly.com/uploads/1/3/4/4/134440814/satanem-saranod.pdfIn PDF document text
    • http://architetturaurbanistica.it/userfiles/files/11896720004.pdfIn PDF document text
    • https://muwamobole.weebly.com/uploads/1/3/4/3/134356931/sedilagabige.pdfIn PDF document text
    • https://rafitiwaxaxeb.weebly.com/uploads/1/3/4/9/134903343/bagipo.pdfIn PDF document text
    • https://sadibagisu.weebly.com/uploads/1/3/4/7/134758630/7f10f.pdfIn PDF document text
    • https://lapolepep.weebly.com/uploads/1/3/1/4/131406498/6b778171.pdfIn PDF document text
    • http://northdakota.easydefensivedriving.net/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/wevupupudimirujerazukik.pdfIn PDF document text
    • https://lafowesatumu.weebly.com/uploads/1/3/4/5/134503032/6748743.pdfIn PDF document text
    • https://muwamobole.weebly.com/uploads/1/3/4/3/134356931/nawuziminimuf.pdfIn PDF document text
    • https://ia-community.com/upload/files/puzoruleme.pdfIn PDF document text
    • https://agopunturapiemonte.it/custom/archivio/files/xupatumide.pdfIn PDF document text
    • http://101-games.ru/images/uploads/files/xikufusiduludele.pdfIn PDF document text
    • https://agefrance.thpservices.com/documentos/file/jafagoj.pdfIn PDF document text
    • https://sosegesidor.weebly.com/uploads/1/3/4/4/134465043/2648835.pdfIn PDF document text
    • https://inkxds.com/userfiles/file/70712508157.pdfIn PDF document text
    • http://naitikfashions.com/ckfinder/userfiles/files/13876985714.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=audi%20a6%20c5%20repair%20manual%20free%20downloadPDF 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 extracted file (font_00_sfnt_off0000b8a2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b8a2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8A2 10984 bytes
SHA-256: 689b683d674745c569b568b82f4f42b7bbb6573343368abfba7a7443bd91033a
font_01_sfnt_off0000d236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD236 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ea48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA48 17936 bytes
SHA-256: 20a40430a59c75ee33448b387d3a89e43fe6cd5320d75127d2e2853d2a01fc64