Malicious PDF — malware analysis report

Static analysis result for SHA-256 42506688c4ed289b…

MALICIOUS

PDF

73.6 KB Created: 2021-09-17 11:56:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 6be8e67735510cb117599aa91215ae09 SHA-1: 1c3fbfd03ee268d1b81698d64a017fb92b306c55 SHA-256: 42506688c4ed289b1bc840639b8e9e53885588164a890bff04994fe8c3183c93
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 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 https://drafthe.ru/uplcv?utm_term=war+of+battleship+mod+apk PDF link annotation
    • http://gift-founder.com/archive/upload/files/wodulurulorevutogoru.pdfIn PDF document text
    • http://xn--80aer5aza.xn--c1acndkmcarx.xn--p1ai/ckfinder/userfiles/files/kezodukitireza.pdfIn PDF document text
    • http://vagtteam.dk/userfiles/Files/rujav.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/58751009918.pdfIn PDF document text
    • http://neboskreb-irk.ru/uploads/userfiles/files/60614129096.pdfIn PDF document text
    • http://www.moyekolodin.com/files/97939431465.pdfIn PDF document text
    • http://scsychem.com/upload/files/81955556346.pdfIn PDF document text
    • http://kiko168.com/UploadFile/file/20210910010322277.pdfIn PDF document text
    • https://xrtradingfeedback.com/cmsimages/file/34931778388.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/4b9312990ab60ddcf063ce5c63efc2ed/84619168325.pdfIn PDF document text
    • https://qian-ho.com/upfiles/editor/files/90592416255.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/161414065e66ca---wakinezobiluzoredu.pdfIn PDF document text
    • http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/bobevetepesopepar.pdfIn PDF document text
    • http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/verezadaperevuruteluguti.pdfIn PDF document text
    • http://epmachine.ru/d/files/sebitazasixa.pdfIn PDF document text
    • http://partnercable.com/files/63218332314.pdfIn PDF document text
    • http://recko.ru/ckfinder/userfiles/files/43957329023.pdfIn PDF document text
    • https://lochoanggia.com/upload/files/60769467779.pdfIn PDF document text
    • https://okinawa4d.com/contents/files/duxagemoberenubudalif.pdfIn PDF document text
    • http://szcftz.com/upload/81469248820.pdfIn PDF document text
    • http://szpk.hu/_user/file/kajebazawolofoten.pdfIn PDF document text
    • http://energyexcess.com/userfiles/file/bamibetema.pdfIn PDF document text
    • http://tao-oita.com/admin/upload_filesfile/piled.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_off0000bb74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB74 10884 bytes
SHA-256: d3222eb990ce014855e906fb861c4da6d9ca75000960701367b3baa67a6442ca
font_01_sfnt_off0000d467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD467 17300 bytes
SHA-256: 0882ae079807a1467096f1c49405080b4da76fe8481484645da7c21369558b4c
font_02_sfnt_off00010128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10128 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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