Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7ae321e68eba83…

MALICIOUS

PDF

89.2 KB Created: 2021-10-20 08:58:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 53f803eec4b022d658ddeff9427855ec SHA-1: a649dc9fb12638cd6c06f5dd93bd11c325554733 SHA-256: cd7ae321e68eba832880be57d6103537611649cc531987217fa3843bc317e1b9
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 4

  • 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://ajur.rest/uploads/userfiles/file/79171914633.pdf In PDF document text
    • http://llux.vn/uploads/files/defuxen.pdfIn PDF document text
    • http://cn-daomeng.com/upload/userfiles/files/0a0fd63b06b0cf803cff8cead4bed4f3.pdfIn PDF document text
    • http://ysenb.kr/board/file/editor/file/betoneweboxug.pdfIn PDF document text
    • https://marupyara.com/fotos/userfiles/file/wimagabafukazojen.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ga3f1pvc3t9rmq72sfhobn9296/vovulutipogopowawagurekog.pdfIn PDF document text
    • https://moyaexpresss.com/ckfinder/userfiles/files/xidaliditexilidululut.pdfIn PDF document text
    • http://basaritarim.net/admin/editor_resim/file/41253930652.pdfIn PDF document text
    • http://liveranigioielli.it/userfiles/files/fosamobatajava.pdfIn PDF document text
    • https://weilmclainboiler.ca/fck_upload/file/59282705185.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/riwoteriridupukenuvof.pdfIn PDF document text
    • http://hz-kontejnery.cz/ckfinder/userfiles/files/lexivafomelu.pdfIn PDF document text
    • http://detaycopymatbaa.com/userfiles/file/32851789876.pdfIn PDF document text
    • http://corporatiegids.nl/uploads/files/mexojipizofulebezamesodeb.pdfIn PDF document text
    • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/jagixidipudilebu.pdfIn PDF document text
    • http://peoplefoster.com/pliki/rurirab.pdfIn PDF document text
    • https://newdesert.pl/userfiles/file/bapabuvedunike.pdfIn PDF document text
    • https://interconformity.ro/images/file/73656854729.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/7o9idcvvk021f45r44bv6768h3/xamak.pdfIn PDF document text
    • https://sherwoodchamber.org/ckfinder/userfiles/files/27799062423.pdfIn PDF document text
    • http://rocincorporated.com/domain.com/images/dynamic_pages/file/vozajuzebapolelosepifukuk.pdfIn PDF document text
    • https://open-call.fr/uploaded/files/37967543320.pdfIn PDF document text
    • http://sonhanint.com/uploadpic/sun/files/202110130154367239.pdfIn PDF document text
    • https://rpdev.org/ckfinder/userfiles/files/21104497594.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TxADE9PCSUw/uplcv?utm_term=problemas+resueltos+de+programacion+dinamicaPDF 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_off0000f0ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10905 11096 bytes
SHA-256: 85b709a3fd5dcaba8cce6c7e0dd760028f1a60b6db4b42fe94cc77b9dc7f060b
font_02_sfnt_off0001226b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1226B 20600 bytes
SHA-256: bf471571d9a702600b5c9e0cfef4efb9a6081bf4cb41ebc700daf020db3ad69a

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