Malicious PDF — malware analysis report

Static analysis result for SHA-256 1165508426c88945…

MALICIOUS

PDF

390.1 KB Created: 2022-02-24 03:08:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 53c644085b0f91046314b514813ffaa5 SHA-1: df7a54c326dccfab67cc4b878eb855e5737e4eba SHA-256: 1165508426c88945bf281b2084ca2040cc1842b50610605b2cd3087f54164125
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7861

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
  • 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.
  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=we+grow+accustomed+to+the+dark+worksheet PDF link annotation
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/58615275804.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613998033d62e---91388300126.pdfIn PDF document text
    • https://www.conepe.org.br/public/ckeditor/kcfinder/upload/files/xepezumek.pdfIn PDF document text
    • https://vibanghanoi.com/uploads/files/45508182242.pdfIn PDF document text
    • https://cafesca.org/ckfinder/userfiles/files/79234590782.pdfIn PDF document text
    • http://zdk-engels.ru/upload2/files/risipowipikap.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161d1915838f14---naribikuvenusez.pdfIn PDF document text
    • https://otoform.com/upload/ckfinder/files/nazeti.pdfIn PDF document text
    • http://klefmarken.se/upload/file/6130528689.pdfIn PDF document text
    • http://strategie-online.net/catalogue_dynamique/file/sirab.pdfIn PDF document text
    • http://cattaneoarchitetti.it/userfiles/files/32416725688.pdfIn PDF document text
    • http://baggiez.net/userfiles/file/jibejedilumebidev.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/682dc79c9a31bbfdb856ff73de034f0d/96730235969.pdfIn PDF document text
    • http://www.rannatennis.ee/data/upfiles/files/58311101803.pdfIn PDF document text
    • http://pusat.wellcomm.co.id/assets/kcfinder/upload/files/12165007745.pdfIn PDF document text
    • http://asclyziarskyklub.sk/userfiles/file/bapoxofeviwikutov.pdfIn PDF document text
    • http://nomorecpapmachine.com/userfiles/files/2810831684.pdfIn PDF document text
    • http://lexxyin.net/files/fckeditor/file/70046604918.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/e57c1a92f1d555ee63c1f22d28e1fabc/voxuwelolilikoduxatusaga.pdfIn PDF document text
    • http://cmtdental.com/upload/ckimg/files/musazedusobefakorodikovo.pdfIn PDF document text
    • http://rideabikenews.com/user_img/files/28128572606.pdfIn PDF document text
    • http://www.conepe.org.br/public/ckeditor/kcfinder/upload/files/jaduwexuvolidupeloz.pdfIn PDF document text
    • https://steammining.com/userfiles/file/84256898131.pdfIn PDF document text
    • https://fenicia.uy/fenicia.com.uy/uploads/files/setimenexugofebimo.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/1k2tmubnaajrrcqoppp6v50623/gewolewowala.pdfIn PDF document text
    • http://aodaibooking.com/FileData/ckfinder/files/20210718_AC80912A4A66F656.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161bd41ea1e06f---gamof.pdfIn PDF document text
    • https://ddnepal.com/assets/userfiles/files/51288790012.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_off0005a52e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A52E 19856 bytes
SHA-256: 7a59c6c7282a959b15489ed2a326c069862d1acfdd2a2d4b0545584664433347
font_01_sfnt_off0005d900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D900 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005f020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F020 10844 bytes
SHA-256: 474e2fa9f7e58039b5da8de51979082269ea0103d4f4df9c5d29d1681ead28e6