Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de8cef3c886b8bd…

MALICIOUS

PDF

506.7 KB Created: 2022-02-04 23:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 9222b0efc89aed3522016bf9f02e7d1a SHA-1: 9e1ff5b5a08e39ef72e20bfbb3ae015174a2aece SHA-256: 4de8cef3c886b8bdcbddafa0d86e23332c515efe701771122ce30167fa8e7af2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4051

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 http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161e88dea8be68---kokevegazapuxitukobukumi.pdf In PDF document text
    • http://gattoneva.pl/pages/userfiles/file/kapogazowusegupojidutezog.pdfIn PDF document text
    • https://kontiko.com/ktkweb3/images/upload/files/fimosinuritolokevamiwo.pdfIn PDF document text
    • https://shiprapublication.com/uniformkontakt/userfiles/image/files/41637238621.pdfIn PDF document text
    • http://shahnawazonline.com/uploads/files/62112675607.pdfIn PDF document text
    • https://esofagopisa.it/userfiles/file/96814106992.pdfIn PDF document text
    • http://happy-land.hu/editor_up/nirusikubilavedepirumogud.pdfIn PDF document text
    • http://elixiriso.com/kcfinder/upload/files/piguzumadulusevibifasu.pdfIn PDF document text
    • https://crownprolaw.cn/userfiles/Proj_Name/files/lopajejovogojasisubupurij.pdfIn PDF document text
    • https://bloodyofficeadmin.underguide.com/upload/userfiles/file/nekijepiverenewow.pdfIn PDF document text
    • http://raiz.jp/kcfinder/upload/files/45105314002.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//vugotalirixuvok.pdfIn PDF document text
    • https://equator-maritime.com/userfiles/file/wixadoxelizo.pdfIn PDF document text
    • https://ubranni.com/uploader/files/76310542785.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/328e1559b9468aaf2fefda02fd1fbd33/95573097440.pdfIn PDF document text
    • https://ytdrive.com/CKEdit/upload/files/27607438407.pdfIn PDF document text
    • http://qts.pandae.biz/views/images/sign/file/dofabuxo.pdfIn PDF document text
    • https://nbretail.com.vn/ckfinder/userfiles/files/52017033596.pdfIn PDF document text
    • https://stallion-international.com/userfiles/file/6780498311.pdfIn PDF document text
    • http://okwmd.com/upload/fckeditor/file/9955652915.pdfIn PDF document text
    • http://zamokugrofa.sk/admin/fckeditor/file/6461652545.pdfIn PDF document text
    • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/161fd8c10bdd6d---24877208005.pdfIn PDF document text
    • http://smartvoicesys.com/userfiles/momata.pdfIn PDF document text
    • http://cathugo.de/res/wysiwyg/file/32282881020.pdfIn PDF document text
    • https://brukspec.pl/upload/file/43519980493.pdfIn PDF document text
    • https://gopherscopes.com/userfiles/file/zowadakasumesuze.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/lisorolederidelimexemuduk.pdfIn PDF document text
    • https://polytex.de/sites/default/files/37622313682.pdfIn PDF document text
    • https://kenkochaya.com/user_data/ckfinder/files/bobivek.pdfIn PDF document text
    • http://arcdesantmarti.com/biocop/Images/images-editor/file/90282455275.pdfIn PDF document text
    • http://www.miyadenthai.com/image/upload/File/34354544433.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/e0fbd6902f05d1c9dd1c304bb2999441/tufevepisasepagal.pdfIn PDF document text
    • http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/guvalofupu.pdfIn PDF document text
    • http://kbidc.kr/upload/editor/file/1637662139.pdfIn PDF document text
    • http://onnetsolution.in/userfiles/file/duselonugalapamebij.pdfIn PDF document text
    • http://studiobaliva.eu/userfiles/files/wunijurizit.pdfIn PDF document text
    • http://megaprestige.ru/uploads/files/benekodetalujema.pdfIn PDF document text
    • https://isigakizima.net/img/tmp/file/sezejawonuniremevox.pdfIn PDF document text
    • https://runirac2020.chandra.ac.th/webback/kcfinder/upload/files/wifut.pdfIn PDF document text
    • http://speckrepej.com/upload/file/16684430569.pdfIn PDF document text
    • http://zssadkowice.pl/pliki/19329607007.pdfIn PDF document text
    • http://musikpark-live.de/userfiles/file/xivinukulorajorenil.pdfIn PDF document text
    • http://flemisterbauldingfamily.com/clients/8/82/82a21d9598fc66f9117a8fb7222c8fd0/File/rimazex.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=7+continents+worksheet+1st+gradePDF link annotation
    • 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
    +2 more URL(s)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00078050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78050 16236 bytes
SHA-256: 83f92b740a41fa8c67afe46df89fcbdc963ae03461b0bc075ca3281daea846a7
font_01_sfnt_off0007aa1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA1F 10788 bytes
SHA-256: 115fc3914655c470c10ae8364f0fde0f2f977017c1ba1a1e770e7178afa29e84
font_02_sfnt_off0007c2f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2F4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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