Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e30658aea1aa486…

MALICIOUS

PDF

93.5 KB Created: 2021-10-13 13:07:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: d5409119dfeee7ac9d1f7488ef525ba9 SHA-1: 49e1b18fe199a982fc58f0f561a22d5fc81ae32e SHA-256: 4e30658aea1aa486bdfe223432af9781c2624f21715cbe4202bd6e8debab0581
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 http://laboratoriologos.it/userfiles/files/77979895992.pdf In PDF document text
    • http://aburobocon2019.mnb.mn/uploads/files/99362143716.pdfIn PDF document text
    • http://www.sandipmallick.com/fckimages/file/87699437449.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/t2c65u0upim7o5en8t97s00al9/jedudamawemobilub.pdfIn PDF document text
    • http://xn--80aafjbaeihgganggf9ajkncugh2a.xn--p1ai/pict/file/23970132440.pdfIn PDF document text
    • http://geoass.eu/userfiles/files/59129111967.pdfIn PDF document text
    • https://m-astar.com/UserFiles/files/66688775990.pdfIn PDF document text
    • https://canionglobal.com/FCKeditor/file/fupoliwawitiratogiloruwa.pdfIn PDF document text
    • https://pushtypathshala.com/demo/aims/files/images/files/5825900130.pdfIn PDF document text
    • https://lmcmanager.com/ckfinder/userfiles/files/8972345620.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/b73f3fc6a2e13bbf0b84a2f3abec24a7/3983697832.pdfIn PDF document text
    • https://ce-mi.pl/uploads/userfiles/files/33552618304.pdfIn PDF document text
    • http://k1a.ru/images/files/file/wivavomuboroxazikozo.pdfIn PDF document text
    • https://leganordavigliana.com/uploads/file/57956555285.pdfIn PDF document text
    • http://unsersohn.ch/images/file/gisiwujajuratevomu.pdfIn PDF document text
    • http://mitsubishilongbien.vn/images/ckeditor/files/18352828201.pdfIn PDF document text
    • https://samirkumarpaul.com/ckfinder/userfiles/files/pewiworopopagariteniruda.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/htdkjfh78d0f3kf8f2pc9u29m1/13740679115.pdfIn PDF document text
    • http://jjsgreatescape.com/uploaded_files/userfiles/files/tofomexup.pdfIn PDF document text
    • http://anapro.com/ckfinder/userfiles/files/bemijevedazuzeza.pdfIn PDF document text
    • https://agape4u.org/userfiles/file/82408039188.pdfIn PDF document text
    • http://aurangabadptti.com/ckeditor/ckfinder/userfiles/files/moborizipebegidelibuju.pdfIn PDF document text
    • https://clove7.com/userfiles/file/19384921875.pdfIn PDF document text
    • https://shiokuda2.com/contents/files/92515650164.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16132fb8f18796---votowowanafi.pdfIn PDF document text
    • https://quizai.com/uploads/files/xudimegulozaluzowataxozet.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/UsNeCLCzgYg/uplcv?utm_term=no+shrinking+violet+meaningPDF 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_off0000fb79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB79 10688 bytes
SHA-256: 6aa8b5e850b29c46f3e0ae32a03167d745d0ed94b461a48416d1312341450ceb
font_01_sfnt_off000113d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113D1 22668 bytes
SHA-256: 0fce8c0bf85be8a714941aef5d9104949977747591a612245182bed12f5440f0
font_02_sfnt_off00014e53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E53 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1