Malicious PDF — malware analysis report

Static analysis result for SHA-256 478997d2324fe1f9…

MALICIOUS

PDF

490.4 KB Created: 2022-02-23 17:44:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 400deadd86a05a63534ed9c02e34f9c0 SHA-1: 5587a6e4b00e53b4030f22489534f3d527a2ce48 SHA-256: 478997d2324fe1f95811b42bb3afd038eb23544fd6382846abbd23db7caa7420
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4301

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://sunuf.co.za/XSRYdR1H?utm_term=first+grade+literacy+worksheets PDF link annotation
    • http://curry-box-deluxe.de/userfiles/file/64751764418.pdfIn PDF document text
    • https://kuraniterbiye.com/resimler/files/zidote.pdfIn PDF document text
    • http://krzeptowski.pl/file/82928088420.pdfIn PDF document text
    • https://christschoolblr.in/userfiles/file/12935404810.pdfIn PDF document text
    • https://fleuriste79.fr/ckfinder/userfiles/files/sametarasa.pdfIn PDF document text
    • http://kool-house.com/upload/editor/file/46139646943.pdfIn PDF document text
    • http://niktid.ru/userfiles/file/bizivezuxaxavobol.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/6261884556c700a0083d0d7d9ae65d21/fukivezojoki.pdfIn PDF document text
    • http://bangkok.union.travel/ckfinder/userfiles/files/gotapowotaponolofumep.pdfIn PDF document text
    • http://wmc21.com/ckupload/files/zubiberinuna.pdfIn PDF document text
    • https://webbsoil.com/home/webb/public_html/ckfinder/userfiles/files/bupewexosiduwejajir.pdfIn PDF document text
    • http://nhs1968.com/clients/65482/File/37152257823.pdfIn PDF document text
    • https://beautydent.hu/editor_up/23407978582.pdfIn PDF document text
    • https://jancsoalapitvany.hu/ckfinder/userfiles/files/84783477376.pdfIn PDF document text
    • https://cbdc.co/uploads/ckfinder/userfiles/files/89375088862.pdfIn PDF document text
    • https://fizjolech.pl/userfiles/file/davezujoni.pdfIn PDF document text
    • http://www.almansori-ye.com/almansorifiles/files/77119304691.pdfIn PDF document text
    • http://xn--90ae5b.xn--p1ai/uld/files/zofigabejo.pdfIn PDF document text
    • https://rjpexport.com/files/pamuvumozidoma.pdfIn PDF document text
    • http://xn--80age2amlc.xn--80adxhks/pics/images/file/nalepivevigereligavigugi.pdfIn PDF document text
    • http://www.biharikft.hu/bihari-admin/ckfinder/userfiles/files/48287680813.pdfIn PDF document text
    • http://flygarfield.net/userfiles/file/47851381509.pdfIn PDF document text
    • http://aibrpjoaae2.specialty-match.com/upload/files/18904715204.pdfIn PDF document text
    • http://linza-market.ru/upload/files/xebigi.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/1v8bllb2uhbmk8a9biag4p5j41/keziwajowuviwu.pdfIn PDF document text
    • http://zabbeleecooking.com/ckfinder/userfiles/files/kutudotirozogadapimu.pdfIn PDF document text
    • https://pbpkrosno.com/fckfile/bepotuzogiwanuvedomukakok.pdfIn PDF document text
    • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e549bc2ad29---rakinosa.pdfIn PDF document text
    • http://zulassungsservice4you.de/bilder/file/dotit.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_off000739ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x739BA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000750da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750DA 10816 bytes
SHA-256: 55b7e932f03e0bcbf23b129150e940b8711616a91b6e3892adb51a0ed4eecffe
font_02_sfnt_off000769c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769C6 18476 bytes
SHA-256: 3c74dc1c998cbb363d865e5f082a638e389c48b6f769ea2601d8964e0fba4ad3