Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d31d05f51c1f7c6…

MALICIOUS

PDF

607.7 KB Created: 2022-02-20 20:15:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 7c690bc26a3f4988e6734174f20c1c6c SHA-1: bac75dfa0fcab547636178cb55569baaf4e9411c SHA-256: 0d31d05f51c1f7c6576707f2c9192f2fa8c1243a29321f35fad2034f6a7b6703
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3511

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=nursing+case+study+format+sample PDF link annotation
    • http://ppogrimall.com/upload/editor_image/file/44549662680.pdfIn PDF document text
    • http://eiak.org/upload/editor/files/gogutibaxa.pdfIn PDF document text
    • http://pngroup.pl/ckfinder/userfiles/files/2266808200.pdfIn PDF document text
    • https://drakbera.com/ckeditor/ckfinder/userfiles/files/popejijined.pdfIn PDF document text
    • http://dsfly.com/uploads/files/rumekowuki.pdfIn PDF document text
    • http://18554080.com/userfiles/file/gurexovuwuzuwomejokivif.pdfIn PDF document text
    • http://isystemlab.com/admin/ckfinder/userfiles/files/tusunonobozikite.pdfIn PDF document text
    • http://mvhs1964.com/clients/2/20/2030ff4f331b14c2016b95997514b7ac/File/21289201847.pdfIn PDF document text
    • http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/71149364567.pdfIn PDF document text
    • http://k-souz.com/userfiles/file/levizu.pdfIn PDF document text
    • http://thebrownbag.vn/upload/files/63480428947.pdfIn PDF document text
    • https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/86127713630.pdfIn PDF document text
    • https://techlan.pl/files/file/23709411142.pdfIn PDF document text
    • http://prodottoitalia.eu/userfiles/files/kejosejugumani.pdfIn PDF document text
    • http://kopdesign.nl/userfiles/file/78380817032.pdfIn PDF document text
    • https://www.frontiermea.com/sites/all/libraries/ckfinder/userfiles/files/fitadimobajar.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161991d7bda9f6---geliravawinufut.pdfIn PDF document text
    • https://2-view.org/home/view/public_html/ckfinder/userfiles/files/natotedoterevisagevara.pdfIn PDF document text
    • http://bortran.com/upload/image/file/20210720034831.pdfIn PDF document text
    • https://khogiaydantuonghanquoc.com/images/news/file/23805871399.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/63103978411.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161dd36fce914a---36082118462.pdfIn PDF document text
    • http://teppich-bayat.de/kcfinder/upload/files/56404717756.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16190c0627a1a0---sibomiviwuwolen.pdfIn PDF document text
    • http://www.contectrade.hu/fckfiles/file/nazebozagerarovegubam.pdfIn PDF document text
    • http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/93753503563.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618bde551ebc2---nogor.pdfIn PDF document text
    • https://borgopitti.it/userfiles/file/65429978615.pdfIn PDF document text
    • http://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/17727862185.pdfIn PDF document text
    • https://afpf.emailingmanager.com/uploads/editor/file/16610615566.pdfIn PDF document text
    • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1617a7232629f3---13898723985.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_off00090f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F5C 17988 bytes
SHA-256: 0f3a8bffc9cd8d189201e6befa641a3f139cd4d0efcc9c39f9a1ba61a102b6a6
font_01_sfnt_off00093e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E6F 11156 bytes
SHA-256: 8f1006f642561d02e67f57568f5bb54dbc95c1cb0abf0b3e071d074e6a06b4e8
font_02_sfnt_off00095859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95859 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9