Malicious PDF — malware analysis report

Static analysis result for SHA-256 445eed9d134f341d…

MALICIOUS

PDF

75.3 KB Created: 2021-11-07 15:04:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: ddbd1e5520ce97fc935ab4cb6e1c06ee SHA-1: d976f0000016e533edf4bb9e793fa575d6237eeb SHA-256: 445eed9d134f341d64874747cff4fd3b475d2b1d1b654ccc97599ece5bc62ab8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://kabaretyimpresariat.pl/Upload/file/vikepakuleninawutigesu.pdf In PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16162ec07bb843---1241364636.pdfIn PDF document text
    • http://magogaralbamoble.com/galeria/files/sobira.pdfIn PDF document text
    • https://cytairtool.com/test/userfiles/file/20211006_fa92b.pdfIn PDF document text
    • http://ohmytour.kr/FileData/ckfinder/files/20210905_374CCF2604CF40A9.pdfIn PDF document text
    • https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/25148675958.pdfIn PDF document text
    • http://vertracapital.com/uploads/files/31291187445.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/e410ca1481711a12c07563629d6e2a0a/91598564086.pdfIn PDF document text
    • http://findusafranchise.com/files/files/lijonamajifarisu.pdfIn PDF document text
    • https://kaimano.it/file/muxirasitusatob.pdfIn PDF document text
    • http://nepodoshlo.kz/ckfinder/userfiles/files/fetejamopuzo.pdfIn PDF document text
    • https://adamant54.ru/userfiles/files/raduwasujagujig.pdfIn PDF document text
    • https://hw-power.com/uploads/ckfiles/files/613c9e92d1c2f.pdfIn PDF document text
    • http://jiangsutravel.kr/userfiles/files/20211018_060220.pdfIn PDF document text
    • http://sys-svinding.dk/userfiles/file/27462081207.pdfIn PDF document text
    • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/73415019050.pdfIn PDF document text
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615b5a7d492be---98992605770.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/9c18cht8ljva3d2itprifn5897/rawobubawagus.pdfIn PDF document text
    • http://banglatalkies.com/dynamic-images/cms/file/rixeguxafoxigeto.pdfIn PDF document text
    • http://www.ddu-hk.cz/ckfinder/userfiles/files/fokesu.pdfIn PDF document text
    • http://hoangduy.vn/vn/files/84038704439.pdfIn PDF document text
    • http://ttlh.vn/storage/ckfinder/files/rirovi.pdfIn PDF document text
    • http://tartak-monis.pl/tartak/images/file/rabobowidazazifo.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=foot+warm+to+touchPDF 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_off0000c4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B2 10116 bytes
SHA-256: fe783d25fe017a59845a637fc244c65540fbe78e5a6ce5c0b535ca2b23d0fa1d
font_01_sfnt_off0000db58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB58 17508 bytes
SHA-256: 5420aedfb961b056d2fa1d7730dcf471a98bb56f1806a7a76345ca3c78ccc9f0
font_02_sfnt_off000108d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D0 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef