Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcf264881dcae11…

MALICIOUS

PDF

323.7 KB Created: 2022-03-12 05:16:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: f575cce79da878998307ddf1e3ee01c3 SHA-1: bf63a9e12ef86aace6ed50eb6036a460150a8950 SHA-256: 3bcf264881dcae111365576df43dfa3795dbf54bc7d4c153a2d0ef3e933ead59
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7681

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://mifuj.co.za/XSRYdR1H?utm_term=obc+caste+certificate+application+form+pdf+rajasthan PDF link annotation
    • http://gndpta.eu/news_objects/files/vudigavugozela.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/55abc5346c7b913fc3e1da2f9591321e/88887552109.pdfIn PDF document text
    • http://szm.hu/userfiles/file/ruwajemajemenulapog.pdfIn PDF document text
    • https://mama-light.org/business_school/uploads/file/49107560504.pdfIn PDF document text
    • http://fishtech.org/uploads/userfiles/file/file/26286457726.pdfIn PDF document text
    • http://studiodebiaggi.eu/userfiles/files/zoselomimejisetexujix.pdfIn PDF document text
    • https://mingyi-lock.com/data/file/userfiles/files/83674195366.pdfIn PDF document text
    • https://demideopool.ro/ckfinder/userfiles/files/diravokewibofozokutu.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/161f88bcaf03ec---6198507510.pdfIn PDF document text
    • https://sibservis.com/ckfinder/userfiles/files/20142132106.pdfIn PDF document text
    • https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/gafaxejobupafiximen.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/jabede.pdfIn PDF document text
    • http://spasm-sympo.org/uploads/ck/admin/files/31848009811.pdfIn PDF document text
    • http://www.nstrechy.cz/upload/files/bogulakagoravosa.pdfIn PDF document text
    • http://shinyoungvalve.com/userData/board/file/27627739625.pdfIn PDF document text
    • http://es-manzokudou.com/yamituki-n/uploads/files/23831289774.pdfIn PDF document text
    • http://problemconsulting.com/img/download/files/nezadarimi.pdfIn PDF document text
    • https://kapokcmassage.com/uploads/files/202202162035263182.pdfIn PDF document text
    • https://bedandbreakfastholten.nl/userfiles/file/rujekixanotara.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/161fad22181337---6796766273.pdfIn PDF document text
    • https://www.cheeweitay.com/admin/kcfinder/upload/files/muzej.pdfIn PDF document text
    • https://hoppe.dk/files/46863695945.pdfIn PDF document text
    • http://ferrocom-spb.ru/userfiles/files/17737856507.pdfIn PDF document text
    • https://prospr.fr/ckfinder/userfiles/files/jemopijotafup.pdfIn PDF document text
    • https://cukimentescukraszda.hu/files/files/pimetosodusuribuxokobexi.pdfIn PDF document text
    • https://wronba.pl/uploads/wysiwyg/file/95295586869.pdfIn PDF document text
    • https://apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/99746313254.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_off00049d9e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00049d9e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00049d9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49D9E 18648 bytes
SHA-256: 9d17a1cb51fa3240c8da1077090bd4612ec073b786b54fb17d21904768f3c43d
font_01_sfnt_off0004ced4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CED4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004e5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E5F4 11180 bytes
SHA-256: bb000975f261ce94f555b294936368d27f4e435c3d4854222fa574244cac93a5