Malicious PDF — malware analysis report

Static analysis result for SHA-256 478d537637d8ce69…

MALICIOUS

PDF

76.2 KB Created: 2021-12-11 00:24:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: eb202bdcbcfc04ec9abff1b719fb51bd SHA-1: 74c1f416e4c3e68eec714173fe740d18a7b77411 SHA-256: 478d537637d8ce69ad7192603675beed572e3c65c0de9b00e1e415e50569ce1d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • 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://svenjakretschmer.com/ckfinder/userfiles/files/17599919683.pdf In PDF document text
    • https://knoxvilleremembers.com/media/zinevuxikodoxobojatisova.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef400af0c5---87496503812.pdfIn PDF document text
    • https://doucetplasticsurgery.com/ckfinder/userfiles/files/73289014986.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/302bplgonaieemk2i9n6pseihj/dalemogukipe.pdfIn PDF document text
    • http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/28324765027.pdfIn PDF document text
    • https://petkasem2hospital.com/images/upload/userfiles/files/popidexosaxomizer.pdfIn PDF document text
    • http://berbun.com/user_img/file/dibanimadujoto.pdfIn PDF document text
    • http://mienjoy.com/upload/23054839669.pdfIn PDF document text
    • https://5974293.pasarantogel.com/contents/files/33683307767.pdfIn PDF document text
    • http://hw-power.com/uploads/ckfiles/files/61a84292f1858.pdfIn PDF document text
    • http://koreaticketland.com/userfile/file/gofenobiwuturusol.pdfIn PDF document text
    • http://safetyassessmentsolutions.co.uk/ckfinder/userfiles/files/fovawuruxumimijolazuvap.pdfIn PDF document text
    • http://cherryontop.pl/upload/fotki/file/zoxiniduvajirogusibupuj.pdfIn PDF document text
    • http://mrcubezpieczenia.pl/app/webroot/media/files/tuwotafenuwofe.pdfIn PDF document text
    • http://sovaimm.it/userfiles/files/debiwijun.pdfIn PDF document text
    • http://library.nesdb.go.th/ic/admin/ckfinder/userfiles/files/pizamudubuletexuxevinudi.pdfIn PDF document text
    • http://giasudaihocsupham.com/Images_upload/files/93995810844.pdfIn PDF document text
    • http://snbedu.com/uploadfile/file///2021110517300420.pdfIn PDF document text
    • http://federicozucchettiarchitetto.eu/userfiles/files/basaf.pdfIn PDF document text
    • http://solee.cn/ckfinder/userfiles/files/keligasilufazexar.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/Z3ufxtS7Wvw/uplcv?utm_term=how+to+win+arguments+in+a+relationshipPDF link annotation
    • http://s250801404.onlinehome.fr/img/uploaded/file/fivozen.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_off0000c502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC502 10876 bytes
SHA-256: f7a9d6580965f32caaa76136c849a28ca81d252e8b0f17c716fa4701b6820765
font_01_sfnt_off0000ddf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF4 17580 bytes
SHA-256: 0b55364fa2e5dff53b2a220b4bf8d59b664a2c80ac7dfd181495c91e962df3fc
font_02_sfnt_off00010bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336

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