Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4a4cf46f6300f2…

MALICIOUS

PDF

440.9 KB Created: 2022-03-09 06:53:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 25842edcae23aadb536ddb21d0fd6aa6 SHA-1: bba232fffdb25cf8183981824224c2b73176cce7 SHA-256: de4a4cf46f6300f2cbf97926905036cc821ed55c7be7a51e3c9edd98e7241bb9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5256

Heuristics 5

  • 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.
  • 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://hyundainhapkhau.vn/upload/files/45131088854.pdf In PDF document text
    • https://longhoang.vn/upload/files/voliviniga.pdfIn PDF document text
    • https://www.vita-organic.eu/admin/ckfinder/userfiles/files/93737174925.pdfIn PDF document text
    • http://hcvitamin.com/webroot/img/files/20453704527.pdfIn PDF document text
    • http://newgoodluckcrane.com/admin/uploadfiles/file/jiletigokulemakagijal.pdfIn PDF document text
    • https://khanikango.in/file/kiwugadu.pdfIn PDF document text
    • https://triosms.com/userfiles/file/tufukebirozenikawu.pdfIn PDF document text
    • http://blccy.com/userfiles/files/98627779683.pdfIn PDF document text
    • https://talaa-obour.net/webmisr/uploadwebmisr/file/jazodazuripikujos.pdfIn PDF document text
    • http://www.dereformasenalicante.com/archivos/files/67292734416.pdfIn PDF document text
    • http://tcsm62.org/uploads/news/file/zumafufirub.pdfIn PDF document text
    • http://littlepearlbooks.in/data/eimages/file/72313791858.pdfIn PDF document text
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/65381311832.pdfIn PDF document text
    • http://www.assistvaleur.co.jp/inc/kcfinder/upload/files/27322033324.pdfIn PDF document text
    • http://elai.kz/upload/2022/02files/220223114610511026492gl.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/887008490.pdfIn PDF document text
    • https://fortworthdental.net/cmsCart/upload/file/75472219762.pdfIn PDF document text
    • http://patp1ryb.ru/media/file/vajexizijomaves.pdfIn PDF document text
    • http://ministryofrum.com/memlogos/file/kuxuliw.pdfIn PDF document text
    • http://cuanhavesinh.com/userfiles/file/retelulufazafukemixene.pdfIn PDF document text
    • https://artlabjo.com/userfiles/file/82000470529.pdfIn PDF document text
    • http://sinsg.com/files/fckeditor/file/43549218312.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/29971810438.pdfIn PDF document text
    • http://sirindhorn.net/upload/File/xiwufupafemedela.pdfIn PDF document text
    • https://tommytest.dish1314.com/data/html_editor/files/sarofegevidexosomaxakapu.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/rnj3eo9pe6m185qqe03k2q7371/7135793453.pdfIn PDF document text
    • http://dolaninsurancetx.com/customcms/uploads/files/94393635745.pdfIn PDF document text
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621a353f37f7c---vunujokepewonuji.pdfIn PDF document text
    • http://serviskytar.cz/kcfinder/upload/files/budifo.pdfIn PDF document text
    • http://omorits.jp/uploads/files/94385987608.pdfIn PDF document text
    • http://duel.pl/userfiles/file/42062388511.pdfIn PDF document text
    • https://southernwashpros.com/nbloom/fckuploads/file/gafuzazuxiveleturetewol.pdfIn PDF document text
    • http://abogadosaguilar.com/ckfinder/userfiles/files/nobutazuvitidadi.pdfIn PDF document text
    • http://gardatrans.com/content/Files/muzupevu.pdfIn PDF document text
    • http://enidental.com/userfiles/file/20220302192225.pdfIn PDF document text
    • http://chinhsuasolieu.com/media/files/witabejokivadubosorog.pdfIn PDF document text
    • https://upsoul.com.br/assets/kcfinder/upload/files/36931724772.pdfIn PDF document text
    • http://www.ferm-matic.fr/upload/file/zosut.pdfIn PDF document text
    • https://dovolena-jiznicechy.cz/uploads/52474604354.pdfIn PDF document text
    • http://kickstartfintech.com/ckeditor/kcfinder/upload/files/3573991708.pdfIn PDF document text
    • https://www.fsps.co.th/kcfinder/upload/files/99767554382.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=british+english+speaking+course+freePDF link annotation
    • https://ceb.lk/assets/js/kcfinder/upload/files/8695461734.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_off000675cf.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000675cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675CF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00068cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68CEF 11004 bytes
SHA-256: b92941974f28817f297264c2536e8d78c3af33ed3fab20850cad0870701b6bac
font_02_sfnt_off0006a67c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A67C 17312 bytes
SHA-256: 8c50af58de7c8959ed23960faac4bb96272d16cd12eaef0ea40d9980531522f6