Malicious PDF — malware analysis report

Static analysis result for SHA-256 8750a0eea4ebcbf2…

MALICIOUS

PDF

75.0 KB Created: 2022-04-02 03:35:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: b89f1ef1e63f2fbf98658f35a1d06d35 SHA-1: b5ff9d5f6500b72833f7c11cfb6b23d16904c813 SHA-256: 8750a0eea4ebcbf20a8cc8d58ae644743a421985338757cc713ffef324925b56
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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://zukaxalu.weebly.com/uploads/1/3/1/4/131406202/c13ba3ab946.pdf In PDF document text
    • http://www.niziointerior.pl/upload/file/35765231633.pdfIn PDF document text
    • https://tagebukolili.weebly.com/uploads/1/3/0/7/130776523/347d3d.pdfIn PDF document text
    • https://taipeitccia.org/CKEdit/upload/files/mowirafejodok.pdfIn PDF document text
    • https://safetyhanoi.com/userfiles/file/27695944680.pdfIn PDF document text
    • https://vagomonezupu.weebly.com/uploads/1/3/4/4/134403629/letuxaza.pdfIn PDF document text
    • https://jatazuleb.weebly.com/uploads/1/3/4/6/134662889/tusorobimogu_wobojesiboselo_sipip.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/92371976419.pdfIn PDF document text
    • https://jotajawe.weebly.com/uploads/1/3/1/6/131606146/297906.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/6cd1jog1f07t4u4dc9nhuks4t7/jevunikuzo.pdfIn PDF document text
    • https://pegojuzifaxoda.weebly.com/uploads/1/3/5/3/135309499/lukugimewasekole.pdfIn PDF document text
    • https://devisme.maxtis.com/userfiles/file/9785468868.pdfIn PDF document text
    • https://posilukununafux.weebly.com/uploads/1/3/4/4/134498017/nojaluvunu-witakesodipad.pdfIn PDF document text
    • http://www.kizkulesikizogrenciyurdu.com/public/ckfinderuploads/files/vetinoxaluz.pdfIn PDF document text
    • https://kujakaxu.weebly.com/uploads/1/3/5/3/135347331/kafunililu-wulaz-safezuvari.pdfIn PDF document text
    • https://sofanet.ro/ckfinder/userfiles/files/noxinawiwas.pdfIn PDF document text
    • http://cuspsurgeons.com/admin/kcfinder/upload/files/70190883635.pdfIn PDF document text
    • https://pestresolution.pt/site/upload/file/75824944619.pdfIn PDF document text
    • https://gunutusubev.weebly.com/uploads/1/3/1/4/131437775/e13086.pdfIn PDF document text
    • http://cudicio.it/images/file/vovuzawozore.pdfIn PDF document text
    • https://copperscrap.wasteequipment.net/ckfinder/userfiles/files/22260663307.pdfIn PDF document text
    • http://ahzgbh.news-read.com/upload/files/kalixejusedu.pdfIn PDF document text
    • https://mesofozup.weebly.com/uploads/1/3/5/3/135351624/b6b41ea.pdfIn PDF document text
    • https://cafij.co.za/YmrXLWy8?keyword=best%20intermediate%20bodybuilding%20program%20redditPDF 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_off0000c05f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c05f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC05F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD871 17000 bytes
SHA-256: c5a60f175298598c2219e1e252b3b009e497cf818914fd6e90e179b4da837410
font_02_sfnt_off00010488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10488 11140 bytes
SHA-256: 25dfc9386aed1a53ae3a9cd09df71cd9f94cb5623c3e37ae2b8ab592ee36fa3b