Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61f91df74ef6cb3…

MALICIOUS

PDF

254.0 KB Created: 2022-03-04 04:26:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: bf5d26214c4f36055d5a26c6f99cc883 SHA-1: 384b3592bdf9d9b84c0aa2bc44300ebc62988f17 SHA-256: b61f91df74ef6cb3e8fc8b0a38a04bff4f624638913ff6073e1ae28c9d3451d9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7139

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://norin.co.za/XSRYdR1H?utm_term=cellox+325+wtw+manual PDF link annotation
    • http://www.jindatunnel.com/up_files/file/fidegosezamejazate.pdfIn PDF document text
    • http://skrn.cz/pic/file/41254369793.pdfIn PDF document text
    • https://rhodium.vn/uploads/news_file/36845310776.pdfIn PDF document text
    • http://vasudevindustries.com/userfiles/file/2293157321.pdfIn PDF document text
    • http://snc.easy-event.net/img/uploads/files/5311318814.pdfIn PDF document text
    • http://saintthomassolapur.org/admin/kcfinder/upload/files/kolupubudenemenubawiro.pdfIn PDF document text
    • http://vetusmeter.com/images/upload/File/36402380907.pdfIn PDF document text
    • http://pereplanirovkaoblast.ru/pict/file/94391177885.pdfIn PDF document text
    • http://nutranghongngoc.com/media/ftp/file/36934253977.pdfIn PDF document text
    • http://ikmblansko.cz/files/upload/files/tarajod.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/62bd650bc06021990131dd1bf928aeb3/matotetisesirizemami.pdfIn PDF document text
    • https://justtigers.com/cmswithfiles/file/libofo.pdfIn PDF document text
    • http://thelifelesson.net/home/tappingchanges/public_html/dowalumniusa/ckfinder/userfiles/files/duxavek.pdfIn PDF document text
    • http://senioradviserab.se/admin/kcfinder/upload/files/feroruwitopi.pdfIn PDF document text
    • https://loffoxfitness.mvwebsolution.com/userfiles/files/romepi.pdfIn PDF document text
    • http://hayfidan.com/admin/kcfinder/upload/files/60345773481.pdfIn PDF document text
    • http://www.aqua-systems.com.tw/ckeditor/kcfinder/upload/files/43891400023.pdfIn PDF document text
    • https://www.babetravelling.com/ckfinder/userfiles2/files/21522801979.pdfIn PDF document text
    • http://drironcat.com/images/file/95617737892.pdfIn PDF document text
    • http://venusitos.com/kcfinder/upload/files/nijagatub.pdfIn PDF document text
    • http://dongamold.com/fckeditor/upload_files/file/29959921782.pdfIn PDF document text
    • https://fenix-arm.ru/kcfinder/upload/files/dewuwirujawaxogomi.pdfIn PDF document text
    • http://tanphatinst.com/vietkiendo/upload/file/22731477302.pdfIn PDF document text
    • http://dobrejaja.com/Upload/file/tajufipurezativowijelaj.pdfIn PDF document text
    • https://asesoriagade.com/app/webroot/files/files/sujenuvojolaxusebubono.pdfIn PDF document text
    • http://tandartsindex.nl/images/uploads/buvojul.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/e88b212d7fba094ae5a66bf1e9d15bb9/nirido.pdfIn PDF document text
    • https://www.datacom.com.br/assets/admin/ckeditor/kcfinder/upload/files/3389960140.pdfIn PDF document text
    • http://undergroundspitters.nl/kcfinder/upload/files/22561417437.pdfIn PDF document text
    • http://abhinavabhishad.org/userfiles/file/44896965479.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///rizasukosawunevufife.pdfIn PDF document text
    • https://kontiko.com/ktkweb3/images/upload/files/16711200705.pdfIn PDF document text
    • https://vsetinrally.cz/userfiles/file/53705446186.pdfIn PDF document text
    • http://kama-msm.ru/storages/file/1294426342.pdfIn PDF document text
    • http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/79730720927.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 extracted file (font_00_sfnt_off000389ff.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000389ff.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000389ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x389FF 10656 bytes
SHA-256: 0393a5e67162ae20f25ff20b56a5d4461395ddb6ed149c088d96f6bd47f745ac
font_01_sfnt_off0003a29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A29B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003b9b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B9B6 17656 bytes
SHA-256: f4f7b76d9cd4b1a94f6b8f571d5942c5494133aa1cdf29fc607ec4769880391a