Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c61b2b792e60764…

MALICIOUS

PDF

458.1 KB Created: 2022-04-10 00:22:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 79f9bad690e74f9e7a01d420309b5cef SHA-1: ead7a0e341a435ee928e6bc30685ceacfead5750 SHA-256: 6c61b2b792e60764280411e8944ce825a0b6bc6a2ffb9e8cb2823951fddbc8cd
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4913

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://wirut.co.za/XSRYdR1H?utm_term=ado+net+tutorial PDF link annotation
    • http://professionalcsali.hu/admin/ckeditor/kcfinder/upload/files/mikod.pdfIn PDF document text
    • http://heldermusic.nl/ckfinder/userfiles/files/mabeberano.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/de3b696be2e35cfdf1ebfca75ba2390c/17247141063.pdfIn PDF document text
    • https://marjoyunlar.com/calisma2/files/uploads/53487452565.pdfIn PDF document text
    • https://lekodapodigix.weebly.com/uploads/1/3/4/5/134500142/6d78da507c2.pdfIn PDF document text
    • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1622fba1e59263---93607184575.pdfIn PDF document text
    • https://butchercurnow.com/img/shop/contents/ravusapazoruge.pdfIn PDF document text
    • https://windfreeklima.com/upload/ckfinder/files/defijebifuzudeketub.pdfIn PDF document text
    • http://ldksolar-officialliquidation.com/userfiles/files/bekolaf.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/wopafuzutusafasejonixom.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/r73rh4ghbq2aj0bkvrlthhgou6/26308250165.pdfIn PDF document text
    • http://19nolumahmudiyeasm.com/depo/files/fixugamajumoziro.pdfIn PDF document text
    • https://wepomifid.weebly.com/uploads/1/3/4/6/134676114/70b1350.pdfIn PDF document text
    • http://kozhencherrymtc.org/userfiles/file/96012908606.pdfIn PDF document text
    • http://modnyi-buket.ru/uploads/files/6346185150.pdfIn PDF document text
    • https://tch.lu/files/files/bupozokaliwiganiriga.pdfIn PDF document text
    • https://elearning-chemistry.ro/userfiles/file/dubigaveg.pdfIn PDF document text
    • http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/sapanefetuxegitawak.pdfIn PDF document text
    • http://humanprojekt.lenti.hu/feltoltes/files/zugudukune.pdfIn PDF document text
    • https://olympicaccessoriesbd.com/assets/ckeditor/kcfinder/upload/files/vizix.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620f344af422d---boposewarufonebud.pdfIn PDF document text
    • http://bjjiffy.com/upload/2095651720.pdfIn PDF document text
    • http://tlca.com/Content/uploads/files/70651007756.pdfIn PDF document text
    • http://lehnerkom.de/images/uploaded/file/55963569931.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/7f6babafe51e597b4928cea273c95596/15520711713.pdfIn PDF document text
    • https://nonupipo.weebly.com/uploads/1/3/4/7/134767860/3c16b6ebce.pdfIn PDF document text
    • https://www.coltishallclinic.co.uk/dashboard/ckeditor/kcfinder/upload/files/mobadu.pdfIn PDF document text
    • https://wotifugif.weebly.com/uploads/1/3/4/2/134265354/lugewusub_dukezu.pdfIn PDF document text
    • http://architettomontanino.eu/userfiles/files/sasumolibe.pdfIn PDF document text
    • https://codefon.hu/js/ckfinder/userfiles/files/77201684167.pdfIn PDF document text
    • https://zafovuzixo.weebly.com/uploads/1/3/4/5/134588091/429d1f73af.pdfIn PDF document text
    • http://monikaknoblochova.com/userfiles/file/reribezu.pdfIn PDF document text
    • https://ckv-siemreap.org/ckfinder/userfiles/files/57688820357.pdfIn PDF document text
    • https://baboxubawuxi.weebly.com/uploads/1/3/4/6/134666135/baruveduxovoke.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1623e8e7484cdc---dofumefov.pdfIn PDF document text
    • http://e-hematologica.com/users/file/38617128985.pdfIn PDF document text
    • http://gramercygrand.ru/files/file/198460441.pdfIn PDF document text
    • http://santehnika34.ru/images/file/24842031237.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_off0006bc86.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006bc86.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006bc86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC86 10152 bytes
SHA-256: 4dfa0fd3cff5bbc4ce2829a3bd97db64450ffe2d6d355c84996931c7257bf122
font_01_sfnt_off0006d34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D34A 17388 bytes
SHA-256: 5e8d1494c75628d4cbbba13e32fa6188515e22154553b85b5b94c00a94b86ea7
font_02_sfnt_off000700c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x700C2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1