Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d7e9bfbfeccd10…

MALICIOUS

PDF

81.8 KB Created: 2021-09-12 13:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: cc5ec7636a8f849f8b2ea8771f2aa004 SHA-1: 595b312971bf1dce141b5c0d49472cd9b3754a32 SHA-256: c5d7e9bfbfeccd106a67cb374b62ecd9ba27b1aac6f50167cf5bf7291b9e22e9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://drafthe.ru/uplcv?utm_term=tamil+story+books+online+free+reading PDF link annotation
    • http://tbm-mova.by/images_from_html_editor/file/57639618281.pdfIn PDF document text
    • http://sunil.kr/uploadfile/fckeditor/file/97979215848.pdfIn PDF document text
    • https://textosl.com/upload/editor/file/4642456792.pdfIn PDF document text
    • https://milliondollardesiclub.com/upload_files/featured/files/pusosewijupebusu.pdfIn PDF document text
    • http://terminsk.by/pics/files/42165607620.pdfIn PDF document text
    • http://ukrkarta.ua/fckeditor/userfiles/file/tasuwixirebipulobulo.pdfIn PDF document text
    • http://kiemdinhcan.com/Images_upload/files/ruvubinu.pdfIn PDF document text
    • http://naasschoolofmotoring.ie/fckeditor/userfiles/file/10462892771.pdfIn PDF document text
    • http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_08_10_31_57_9722.pdfIn PDF document text
    • http://www.prieteniitehnicii.ro/documente/file/juvanurubegoguli.pdfIn PDF document text
    • http://bjavc.com/filespath/files/20210911061250.pdfIn PDF document text
    • http://sahcarpets.com/userfiles/file/79867717351.pdfIn PDF document text
    • http://quocteanviet.com/img-chamthi/files/39500125211.pdfIn PDF document text
    • http://boonfagrandhome.com/user_img/files/27743005389.pdfIn PDF document text
    • http://vizugy.hu/uploads/files/40363873493.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16133e8ee21712---64751453190.pdfIn PDF document text
    • https://tungafilm.com/dorceiys/ckfinder/userfiles/files/kefazewedivapu.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa57e368ac---lonubizado.pdfIn PDF document text
    • http://studionegrelli.it/userfiles/files/tepujuxitizuk.pdfIn PDF document text
    • http://emirates-offshore.com/uploads/image/file/faxuru.pdfIn PDF document text
    • http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/46433099617.pdfIn PDF document text
    • http://lexxyin.net/files/fckeditor/file/bipovade.pdfIn PDF document text
    • http://ssss-sangam.com/userfiles/file/korofulimamafelujug.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_off0000da3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3D 11004 bytes
SHA-256: f3d684930a0666b3fe55b87ece17bdb0cdbe51424576cb4c69d561cdea686869
font_01_sfnt_off0000f3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A8 17512 bytes
SHA-256: 7c30f5354d2005fa249c7bbe8b910c3b5295867880b67585d63577dffbc64e9b
font_02_sfnt_off0001212f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1212F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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