Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3ab9d9d1e72348…

MALICIOUS

PDF

82.4 KB Created: 2021-10-22 14:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 3cff0644494e36fed317b6b47e58bdda SHA-1: 1dff93489784e967dece968158cd2d29724ff185 SHA-256: 4e3ab9d9d1e72348e4863977f5672a0e1bee0303e55ffd37d5fb0c8d5593dcc0
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://sparan-art.ru/ckfinder/userfiles/files/fetibigekotupimunivemij.pdf In PDF document text
    • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/97549685290.pdfIn PDF document text
    • http://bielwod.com/userfiles/file/52159736705.pdfIn PDF document text
    • https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/26195754759.pdfIn PDF document text
    • http://www.aaar.cat/assets/js/ckfinder/userfiles/files/846989255.pdfIn PDF document text
    • http://nissan.e-library.tw/uploads/files/wadusuvovuboginoki.pdfIn PDF document text
    • https://activsport.ro/userfiles/file/melipamupefuzo.pdfIn PDF document text
    • http://dalaichau.com/files/pojamixifuwufurebarevuga.pdfIn PDF document text
    • http://dataction.org/demo/dataction/media/91834852510.pdfIn PDF document text
    • https://serihosting.com/calisma2/files/uploads/vivavureb.pdfIn PDF document text
    • https://ytdrive.com/CKEdit/upload/files/200070841.pdfIn PDF document text
    • https://basisangka.com/contents/files/52788497082.pdfIn PDF document text
    • https://gemma.lucien-sv.info/uploads/files/6133c624358a5.pdfIn PDF document text
    • https://valkexclusief.reviewz.eu/app/webroot/files/userfiles/files/vuzipu.pdfIn PDF document text
    • http://thamcohoaian.com/webroot/img/files/58581972481.pdfIn PDF document text
    • http://telecycling.org/files/file/kulexi.pdfIn PDF document text
    • http://teknis.it/userfiles/files/bonujupowetagegajekukure.pdfIn PDF document text
    • https://raljob.com/userfiles/file/megoxumabitewap.pdfIn PDF document text
    • https://nusantarabet4d2.com/contents/files/95488476359.pdfIn PDF document text
    • https://getadoc.in/ckfinder/userfiles/files/kokufosovetitisarizemovu.pdfIn PDF document text
    • http://shrlie.com/upload_fck/file/2021-10-18/20211018171412749864.pdfIn PDF document text
    • http://personnelstrategies.net/userfiles/file/tugudoge.pdfIn PDF document text
    • http://tartak-monis.pl/tartak/images/file/76912728022.pdfIn PDF document text
    • http://coral-travel66.ru/admin/ckfinder/userfiles/files/tagajikog.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/Z3ufxtS7Wvw/uplcv?utm_term=chihuahua+wire+fox+terrier+mixPDF 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_off0000dd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f54e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54E 17948 bytes
SHA-256: 78e845e5686f6955424085d78799a8103bb5cf798c19e2734aa529a0b086ba66
font_02_sfnt_off000123c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123C2 10480 bytes
SHA-256: 66e012195ddc80e86b5e4abf361950cf59cff387ffdd5143ae1a349c88aa9b89

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