Malicious PDF — malware analysis report

Static analysis result for SHA-256 450baafc561bcdef…

MALICIOUS

PDF

244.7 KB Created: 2022-02-25 05:43:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 492bb598dc666f026e398cc5879c910f SHA-1: f90d93bd4b70f57cb3b41cab057aaba092c25233 SHA-256: 450baafc561bcdef7cc2d9f10ca73a9d5da0694242a9f3470630dc37ebd27dd4
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8277

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://yubit.co.za/XSRYdR1H?utm_term=create+email+signature+template+outlook PDF link annotation
    • http://kryotherapie.net/neu/userfiles/file/xarunaluludifoxuvafoma.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/d9fc0b741b02f8af9d108c4b88533b00/gotowiwuzezolidomov.pdfIn PDF document text
    • https://giaphutelecom.com/tctt/sites/aaa/file/73448792150.pdfIn PDF document text
    • http://falerisztika.hu/tmp/mesutojejesiroze.pdfIn PDF document text
    • http://ud2-140.com/files/33789769194.pdfIn PDF document text
    • http://onlineticketreview.com/images/file/36015943707.pdfIn PDF document text
    • http://somersetcountybar.org/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/12145398055.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/b8423602tn64anjlml9orhj1qn/56426691706.pdfIn PDF document text
    • http://old.arcnet.org.tw/ckfinder/userfiles/files/rewuxikekogawif.pdfIn PDF document text
    • http://unionasset.net/file_upload/spaw_upload/file/20210823233823.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/7b3e041c2588ce6900c336461915d354/9257058872.pdfIn PDF document text
    • http://chestheart.org/assets/ckeditor/kcfinder/upload/files/forixeroruginisamimibof.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161e7739a528f3---wiliwelunoxivotidanuloma.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/hednuomh5ncvruustb4a42oo80/5905363087.pdfIn PDF document text
    • http://webmba.fr/client/logo/file/geselote.pdfIn PDF document text
    • http://tcgardening.com/userfiles/file/2021103110023473499.pdfIn PDF document text
    • https://eliteplacementagency.com/uploads/files/zeragijititadoz.pdfIn PDF document text
    • http://www.pataniforum.com/admin/jquery/ckfinder/userfiles/files/34921730445.pdfIn PDF document text
    • http://boilerservis.ru/uploads/files/gojuvekivaxari.pdfIn PDF document text
    • http://camara.acessoainformacao.org/uploads/ckfinder/files/jisunofuwenipukekujalala.pdfIn PDF document text
    • http://vwtint.com/userData/board/file/11733646701.pdfIn PDF document text
    • https://natanashoes.com/kingkong/userfiles/files/xajoz.pdfIn PDF document text
    • http://kahasat.cz/data/file/sewokokoxezenetas.pdfIn PDF document text
    • http://brno-skoleni.cz/ckfinder/userfiles/files/39052147504.pdfIn PDF document text
    • http://dyneco.kr/userData/board/file/37220974003.pdfIn PDF document text
    • http://signexpowholesale.com/project-new/christianbook/upload_images/file/nalugexatevimabusa.pdfIn PDF document text
    • http://vladimir-kopilka.ru/sites/default/files/file/11543495936.pdfIn PDF document text
    • http://kientrucmoi.com.vn/admin/kcfinder/upload/files/52027324832.pdfIn PDF document text
    • https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/nakedokibijafapozeniri.pdfIn PDF document text
    • http://mrybalko.ru/files/87314394537.pdfIn PDF document text
    • http://heorungminhphat.com/luutru/files/zodozotow.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/puxilusatebikanonaxadanu.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_off00036693.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00036693.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36693 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00037db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37DB3 10816 bytes
SHA-256: 1b933c964f16b013256a940fc0071769bf0067e504d831a04161de805bf0d113
font_02_sfnt_off000396a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x396A2 17220 bytes
SHA-256: a80585be60542844f18e8bb0918c29226bd4fda68f7b9f7b3e5391479ae9a583