Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d9239ad3d29798…

MALICIOUS

PDF

306.6 KB Created: 2022-02-07 15:42:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: f4466f3a756982d079d52e871295c971 SHA-1: 44df46eac8d23a4fc920a9ded21643b67f54a174 SHA-256: b5d9239ad3d29798d226dda5cfd64225d6a1be906bda205643c4ea814d09f7f8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7501

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://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/326b35f6843f09faf5665403e4e4cf80/vepapigudivukopuwowaput.pdf In PDF document text
    • https://pkbae.rs/files/bikaveruwonaxaz.pdfIn PDF document text
    • http://nhactheducthammy.com/upload/files/zumazabuzamonuvojuv.pdfIn PDF document text
    • http://lev-steklo.ru/userfiles/file/64069975100.pdfIn PDF document text
    • https://www.karelo.com/uploads/File/53624423521.pdfIn PDF document text
    • https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/87879155104.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/fafe1689d1662b9027486e606c9deeef/sinirejamesuzaxatukiki.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/bevufetelabulugirid.pdfIn PDF document text
    • http://erh-hu.com/userfiles/file/53469527822.pdfIn PDF document text
    • http://gaishachuukobuhin.com/js/upload/files/divagujejopobutulow.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/ledafudukapasidufapogirif.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/161d7fd665714b---ripifuxura.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612e96f93665a---80580646936.pdfIn PDF document text
    • https://manage3.realtourvision.com/rtv/ckfinder/userfiles/images/files/73683305613.pdfIn PDF document text
    • http://chemtron-vostok.ru/media/file/notogexu.pdfIn PDF document text
    • http://xnucleus.com/members//member_images/files/2728273516.pdfIn PDF document text
    • https://krygina40.ru/UserFiles/File/kusubigibetawesek.pdfIn PDF document text
    • http://xn--aknmedical-yub.com/uploads/file/24666924876.pdfIn PDF document text
    • http://kim-clark.ru/files/file/nokawiwitijuzezekaniga.pdfIn PDF document text
    • http://inruho.ru/ckfinder/userfiles/files/50060137068.pdfIn PDF document text
    • http://videofilm-tv.ru/content/File/87918486347.pdfIn PDF document text
    • http://jtour.vn/userfiles/file/37151247390.pdfIn PDF document text
    • http://gaongonmaiphuong.vn/webroot/img/files/memufuzav.pdfIn PDF document text
    • https://www.borzabadi.com/ckfinder/userfiles/files/gobolomabadaxakapatuxid.pdfIn PDF document text
    • http://superpart.com/files/82337817411.pdfIn PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/60106387783.pdfIn PDF document text
    • http://jinshi66.com/uploadfiles/files/bafotuxogutud.pdfIn PDF document text
    • https://infrastone.com/userfiles/files/21140217697.pdfIn PDF document text
    • http://host.keraladreamhomes.com/~viswabrahmathach/admin/fckeditor/editor/filemanager/connectors/php/userfiles/file/dukogawutavufej.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=game+asphalt+7+mod+revdlPDF 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
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off000461d0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000461d0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000461d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x461D0 16364 bytes
SHA-256: 9993987de81e33ea12cfd46cc12e050f57080d0597d8555fd5f18fecd1a78913
font_01_sfnt_off00048bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48BFC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004a31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A31C 10616 bytes
SHA-256: 998b1f90899321a542bff456b61a4f7b4f67dd59458c3edc197a0c027fecfc79