Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f10b834ea4f0d2…

MALICIOUS

PDF

359.9 KB Created: 2022-02-06 08:25:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: 08924e090fc232d23acee5e5fd8bd0a2 SHA-1: 8eb702ea32a5b6cdfdd3b5308089b657d96b82a0 SHA-256: 26f10b834ea4f0d285e50da8afca7bdb05f5716903f914e6f7857b9c187b5947
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5879

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://yubit.co.za/XSRYdR1H?utm_term=musical+burglar+alarm+project+report PDF link annotation
    • http://resheto.ru/users_images/fck/file/54223870603.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/60a55e6902162450de321449f6388b57/kixugujatuz.pdfIn PDF document text
    • http://123flower.doweb.kr/upload/files/gejunova.pdfIn PDF document text
    • http://sushinamu.com/uploads/files/govivof.pdfIn PDF document text
    • https://stichtingech.org/ckfinder/userfiles/files/vujurapavatugupudur.pdfIn PDF document text
    • http://hanstime.com/userData/board/file/8578634683.pdfIn PDF document text
    • https://fibaquitaine.fr/cebatrama/userfiles/files/34400046167.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1615a7a94eb479---24564872333.pdfIn PDF document text
    • https://edusfera.pl/upload/file/kunofomokaniki.pdfIn PDF document text
    • http://innovarhomes.com/cms_images/file/botobemox.pdfIn PDF document text
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1610763e37d1df---nugibodozedupoxobaririg.pdfIn PDF document text
    • http://cadex.biz/app/webroot/kcfinder/upload/files/34093843802.pdfIn PDF document text
    • http://mbnlpc.com/assets/admin/ckeditor/kcfinder/upload/files/95029229141.pdfIn PDF document text
    • https://acgroupenterprise.com/userfiles/file/menoku.pdfIn PDF document text
    • https://rajnnuhiddje.se/userfiles/file/82365556283.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/9586632119.pdfIn PDF document text
    • http://longbeach.ilovepokebar.com/uploads/files/39351567468.pdfIn PDF document text
    • http://captainkillmite.com/uploads/files/202112211207385059.pdfIn PDF document text
    • http://devison-matras.ru/upload/file/12243118132.pdfIn PDF document text
    • http://greeninfrabd.com/assets/ckeditor/kcfinder/upload/files/87235540856.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/8e6musp5g20j7nl4k10d6a8ph7/zulitutovajovulewogubes.pdfIn PDF document text
    • https://commonlawhouse.in/userfiles/file/99750607752.pdfIn PDF document text
    • https://ijieet.org/ckfinder/userfiles/files/6178931300.pdfIn PDF document text
    • https://autotrans911.com/thread/admin/uploads/file/38974430594.pdfIn PDF document text
    • http://g-shocktou.com/user_file/file/vobugorakojigiwup.pdfIn PDF document text
    • http://zoscm.zohukum.com/ckfinder/userfiles/files/tefede.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107246c885d4---58076468715.pdfIn PDF document text
    • http://allgeology.ru/ckfinder/userfiles/files/30431669639.pdfIn PDF document text
    • http://0851gay.org/userfiles/202201file/2022011617574270554.pdfIn PDF document text
    • http://melabo.com/upload/files/folinawuzujavivudofojo.pdfIn PDF document text
    • http://kirpichi.su/kcfinder/upload/files/dalegumasi.pdfIn PDF document text
    • http://rehahomecare.com/upload/editor/files/nulamiretesagaremotaga.pdfIn PDF document text
    • https://sbmhavacilik.com/userfiles/file/xopizifemuziguvudir.pdfIn PDF document text
    • http://jocoseatee.com/userfiles/files/59053980018.pdfIn PDF document text
    • http://studiotecnicomaglio.it/userfiles/files/zewabotamukiduwulit.pdfIn PDF document text
    • https://windfreeklima.com/upload/ckfinder/files/jojeba.pdfIn PDF document text
    • https://lifecareproduct.in/ckfinder/userfiles/files/ridajusuwusowesarasepe.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_off00052ed5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00052ed5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52ED5 18332 bytes
SHA-256: 97924e8ca553e369ee7a56b9da65f8c39122855e7cc7eae6ead4f6fd05263c71
font_01_sfnt_off00055d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D87 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000574a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x574A7 10976 bytes
SHA-256: 494b8a6f2e4d270b1ff389ab3b111a14fcb2e3d019aec4618f067af13416a25f