Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dbe81d39f35659f…

MALICIOUS

PDF

501.5 KB Created: 2022-02-28 13:59:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-15
MD5: e837a9952b4af4b3bf14770eb94961b8 SHA-1: c2028c775a09a503f2c685ecc214589cd7349a04 SHA-256: 2dbe81d39f35659fb0751895d02001efe9d5035c33a838872b0887a07969c06e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4656

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://fecuq.co.za/XSRYdR1H?utm_term=billings+method+of+family+planning+pdf PDF link annotation
    • http://theheavent.com/userfiles/files/madem.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/60983025073.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/161fda3366fba6---jukizabeworixafesa.pdfIn PDF document text
    • https://babetravelling.com/ckfinder/userfiles2/files/zolejadowaliwomatuvotoso.pdfIn PDF document text
    • http://lsneotek.com/ckupload/files/37450833876.pdfIn PDF document text
    • http://pactolous.hu/upload/file/boxuvunumu.pdfIn PDF document text
    • http://szkolaprzybranowo.pl/ckfinder/userfiles/files/mosagubisalez.pdfIn PDF document text
    • https://oolong-dining-co.com/webroot/editor-uploads/files/sadobaditi.pdfIn PDF document text
    • https://rhkapadia.org/Admin/plugins/kcfinder/upload/files/xazunokisoridibazunam.pdfIn PDF document text
    • http://afksport.cz/upload/files/50132436486.pdfIn PDF document text
    • https://gosselindesign.com/images/from_fckeditor/fichiers/vowinipewokijewufovopojej.pdfIn PDF document text
    • http://ocalsandalye.com/panel/kcfinder/upload/files/fulup.pdfIn PDF document text
    • https://iphastkala.com/userfiles/file/gonovuzivezazuja.pdfIn PDF document text
    • http://tatagz.com/uploadfile/files/19151555171.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/gnikn1v5jvutbecj4bq2etcesa/13017700519.pdfIn PDF document text
    • http://tdybio.com/uploadfile/file///2022022502240343.pdfIn PDF document text
    • http://greensketch.in/userfiles/file/62608684560.pdfIn PDF document text
    • http://jtour.vn/userfiles/file/65565818420.pdfIn PDF document text
    • http://coffeexclusive.co.uk/kcfinder/upload/files/61275669014.pdfIn PDF document text
    • https://stabiactiv.com/userfiles/file/60127147900.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211d54a2a0d6---basatorokogunumurakem.pdfIn PDF document text
    • http://neodermclinic.com/file_media/file_image/file/sokilu.pdfIn PDF document text
    • https://1000families.eu/userfiles/file/dotirokolinaze.pdfIn PDF document text
    • http://tothimi.com/admin/kcfinder/upload/files/74385930071.pdfIn PDF document text
    • https://dassti.cl/admin/uploads/file/93366552094.pdfIn PDF document text
    • http://anke.de/data/anke.de/uploadfiles/file/pisin.pdfIn PDF document text
    • http://praguetransfer.com/files/file/janedejigeziduj.pdfIn PDF document text
    • http://classicalgardenfountains.com/uplds/file/misiniwegamemetezij.pdfIn PDF document text
    • http://bestorkate.com/uploads/ckeditor/files/gilubizivanut.pdfIn PDF document text
    • http://lindendirect.com/ckfinder/userfiles/files/93731018263.pdfIn PDF document text
    • https://weingut-suppan.at/files/13603890297.pdfIn PDF document text
    • https://tes-sys.com/uploads/ckfinder/files/20220201/16436699199784.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_off000764aa.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000764aa.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000764aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764AA 18716 bytes
SHA-256: 12af519d90fa74320b4564c5ee62c9a983ca190ac3fa0b99a358949c49a45372
font_01_sfnt_off000795a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795A5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007acc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACC5 11012 bytes
SHA-256: 06473c1827059c7eeab7aa26f895e07c7a1d84e989e07c933cf6167aa13016a0