Malicious PDF — malware analysis report

Static analysis result for SHA-256 4454eefa4b93a77f…

MALICIOUS

PDF

81.7 KB Created: 2022-05-06 17:45:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 1b187d25e5d4129fa4bdd09dd7f86220 SHA-1: adde9a13719e6c77b41cd886cda14c9ef8579f26 SHA-256: 4454eefa4b93a77f3be58abfdd8c244dcaddb13cc1825a71f559792362a5e95a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://cafij.co.za/YmrXLWy8?keyword=selenium%20webdriver%20tutorial%20pdf%20for%20beginners%20free%20pdf PDF link annotation
    • https://sikafajowed.weebly.com/uploads/1/3/4/7/134757433/donetu.pdfIn PDF document text
    • https://gopaxeseje.weebly.com/uploads/1/3/6/0/136082610/fc3890448.pdfIn PDF document text
    • https://jodajapiguzok.weebly.com/uploads/1/3/2/7/132710756/suvapube.pdfIn PDF document text
    • http://tatagz.com/uploadfile/files/bifujowanajuzifizokekek.pdfIn PDF document text
    • http://etoprosto.ru/ckfinder/userfiles/files/99982793387.pdfIn PDF document text
    • https://lezexoxutipeb.weebly.com/uploads/1/3/4/4/134462335/8365202.pdfIn PDF document text
    • https://benesigonej.weebly.com/uploads/1/3/1/6/131607635/finigako-ninizagon-gadalemenew.pdfIn PDF document text
    • https://xavexipaw.weebly.com/uploads/1/3/1/6/131636683/gafizadex.pdfIn PDF document text
    • https://vagafanuwojuxiv.weebly.com/uploads/1/3/0/7/130776749/9447494.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/11414641488.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/gefepelugizuvavodu.pdfIn PDF document text
    • https://sadutixonigonu.weebly.com/uploads/1/3/1/4/131412491/safonuvebat.pdfIn PDF document text
    • https://kujituxozi.weebly.com/uploads/1/3/4/6/134625238/tibebakapalodo.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1624ca85d708dc---zutenajip.pdfIn PDF document text
    • https://sipelebe.weebly.com/uploads/1/3/4/3/134312525/gesidamiputuva.pdfIn PDF document text
    • http://zezoalza.com/ckupload/files/77554523002.pdfIn PDF document text
    • https://nibovipuduri.weebly.com/uploads/1/3/0/8/130814681/murevapuximexor.pdfIn PDF document text
    • https://pezumolak.weebly.com/uploads/1/4/1/5/141586401/4596605.pdfIn PDF document text
    • https://leximefowa.weebly.com/uploads/1/3/2/6/132680903/zowizalokirut.pdfIn PDF document text
    • http://conelser.hu/fck_uploads/file/nozepetaz.pdfIn PDF document text
    • http://takramaipai.com/mypicture/file/xurivizoxi.pdfIn PDF document text
    • https://simipupipez.weebly.com/uploads/1/3/4/7/134716676/werin.pdfIn PDF document text
    • http://schokobrunnen.com/idata/xukenosolawegalutado.pdfIn PDF document text
    • 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_off0000d641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD641 17788 bytes
SHA-256: 5bd681b481ccfcc5c6e409da258f51b88b63955bb1344ac943a676309261e5b6
font_01_sfnt_off0001053d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1053D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D54 11308 bytes
SHA-256: 6b78d6c5496186c38275792242df909c114c9aadd213765665ab34577d6a5828

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