Malicious PDF — malware analysis report

Static analysis result for SHA-256 1915d2681d15c435…

MALICIOUS

PDF

83.8 KB Created: 2021-11-04 03:11:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: c89448b91d82d9aefd11cce22cf7b544 SHA-1: 2e4e8464c08d6252453912ddfa983e070d97b544 SHA-256: 1915d2681d15c435c7952463d6dc6c0eaba3578390aaae21c0e3d08d51de0877
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://radio-aurea.eu/files/file/mojixamuzokef.pdf In PDF document text
    • http://satunatc.ac.th/ckfinder/userfiles/files/89762467577.pdfIn PDF document text
    • http://ebd.su/UFD/7623/files/70197045734.pdfIn PDF document text
    • http://scro.ru/pic/file/wopabojibifudeverebojebe.pdfIn PDF document text
    • http://hy-sf.com/admin/upimg/file///71150890027.pdfIn PDF document text
    • http://www.galiantsolutions.com/emailimages/file/xufiginazodori.pdfIn PDF document text
    • http://petswithlove.com/cvsprojects/SSK/Source/2.0.0/images/files/puwexazopewoxosow.pdfIn PDF document text
    • http://lexus-custom.com/js/upload/files/sanitawotezijogojezesaf.pdfIn PDF document text
    • http://videocycling.info/files/file/tupasezukowixof.pdfIn PDF document text
    • http://teakdeck.pl/files/file/gopogupisuremopo.pdfIn PDF document text
    • http://xn--or3bi2da319p.com/upload/fckeditor/file/93598597528.pdfIn PDF document text
    • http://globalsublimation.net/uploadfile/files/28131020583.pdfIn PDF document text
    • https://gemma.lucien-sv.info/uploads/files/6147786111a61.pdfIn PDF document text
    • http://iltorg.ru/upload/file/tefamojetuzobatuvofup.pdfIn PDF document text
    • https://lalicorne-hotel.com/userfiles/file/dixiperi.pdfIn PDF document text
    • http://exmar.it/foto_fck/file/bifijevolobif.pdfIn PDF document text
    • https://rsun.pro/admin/ckfinder/userfiles/files/82209339307.pdfIn PDF document text
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616c377cdbf92---18608326305.pdfIn PDF document text
    • https://kiptep.ru/file/sorekuroxilurefevof.pdfIn PDF document text
    • https://lolakarimova.uz/ckfinder/userfiles/files/75970316842.pdfIn PDF document text
    • https://oasis-travel.ro/files/86153576574.pdfIn PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/44095c5c5d5ab91f8d1b849c433f34a2/gumawuwevef.pdfIn PDF document text
    • https://masteranalog.com/userfiles/file/nifepugugujugevimunarofa.pdfIn PDF document text
    • http://tufaghanafc.com/js/ckfinder/userfiles/files/96876189811.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=kronig+penney+model+questionsPDF 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_off0000d745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD745 10924 bytes
SHA-256: ac7a393a03b791ce23251dbb15c70efec92cc1abc0d570a4371f49cafbf2e9a1
font_01_sfnt_off0000f008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF008 22088 bytes
SHA-256: 98fe8a75ff786491a333033a6a137ae60b2c88723c48ebf54c447d5703ef7990
font_02_sfnt_off00012944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12944 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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