Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dca18d0482f3bd2…

MALICIOUS

PDF

74.5 KB Created: 2021-11-16 12:56:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 28ff769ea61215d937104d692ec3129e SHA-1: ce36c84bf2fb3b1d29a78a291b1f721ed09d9c42 SHA-256: 1dca18d0482f3bd258efed6c36ddd9ed48a309f697b356f48d26182b8c516250
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://proreferee.ru/uploads/ckfinder/files/2399081822.pdf In PDF document text
    • http://huseyindurmuslar.com/images_upload/files/kosakenozodu.pdfIn PDF document text
    • http://whatifitspossible.com/ckfinder/userfiles/files/46043658195.pdfIn PDF document text
    • http://longthinhphat.net/uploads/files/sudopurajigenidoxod.pdfIn PDF document text
    • http://creptiles.dk/userfiles/file/xafepimedejumavolujafu.pdfIn PDF document text
    • https://ntiverification.com/userfiles/file/47721113270.pdfIn PDF document text
    • http://www.bash.cl/media/file/47505629827.pdfIn PDF document text
    • http://pazarziraat.com/userfiles/file/lamokerodateruragizo.pdfIn PDF document text
    • https://norservis.com/files/files/98481569226.pdfIn PDF document text
    • http://laxycoffee.com/upload/files/bunoted.pdfIn PDF document text
    • http://tantrungnghia.vn/media/ftp/file/saxitizawiziweru.pdfIn PDF document text
    • http://es-manzokudou.com/yamituki-n/uploads/files/24182545748.pdfIn PDF document text
    • https://ego-sofa.tw/uploads/files/202109081903038132.pdfIn PDF document text
    • http://www.companyforte.com/imagenes/editor/file/81943802896.pdfIn PDF document text
    • https://candica.pl/ckfinder/userfiles/files/96800244257.pdfIn PDF document text
    • https://sentinels.ro/userfiles/file/sojovuxuwufe.pdfIn PDF document text
    • https://thingstodobahrain.net/ckfinder/userfiles/files/9160660482.pdfIn PDF document text
    • http://ihanzao.com/userfiles/file/20210927073842_227432100.pdfIn PDF document text
    • http://didaconcept.com/admin/fckeditor/file/14343644153.pdfIn PDF document text
    • http://ckm-machinery.com/userfiles/files/63137910302.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/mawepusuzadafanugezu.pdfIn PDF document text
    • https://clubberia.com/js/ckfinder/userfiles/files/36287955430.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/23aea36e1f236c37aaa102ec885497fc/zudusinagadofeli.pdfIn PDF document text
    • http://celeb.huh.hu/UserFiles/File/misomawiraxik.pdfIn PDF document text
    • https://turismopontevedra.com/ckfinder/userfiles/files/laroweruvewegijitem.pdfIn PDF document text
    • https://www.pu-sk.com/app/templates/js/ckfinder/userfiles/files/dilale.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/D9plVHj2VOU/uplcv?utm_term=transportation+in+supply+chain+management+pdfPDF 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_off0000c098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC098 16372 bytes
SHA-256: 079f859db4daf569b211cf072cc0b05743fa716e6e6985f80e992d30579b279d
font_01_sfnt_off0000eabb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABB 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off000101e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E1 11244 bytes
SHA-256: 41ec4df10bb7855fc5bbcf6e2112919d3004321943a76dc1e631038f879502e3