Malicious PDF — malware analysis report

Static analysis result for SHA-256 72ba665b586d1aea…

MALICIOUS

PDF

263.8 KB Created: 2022-02-11 00:32:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 543f60345c258224e7792338f2ccbc2b SHA-1: a3f1d10be4422eb6c9bd6f88432f3f7ce370e9e2 SHA-256: 72ba665b586d1aead9efbb5bfb8eb77057375b897001c99abe824e28aba3bb0a
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6013

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://lazav.co.za/XSRYdR1H?utm_term=ccleaner++pro+free PDF link annotation
    • http://littlefreddieking.com/clients/65037/File/dutidadosofitelotowemabi.pdfIn PDF document text
    • http://hotelhillwaypark.com/app/webroot/js/kcfinder/upload/files/11619075413.pdfIn PDF document text
    • http://codemessaging.net/ckfinder/userfiles/files/7306695908.pdfIn PDF document text
    • http://chinazzjx.com/d/files/bazipefeluviguriv.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/58628152493.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619147af3df84---wuxogaputidetokufonobod.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a7a074c9372---xotodubov.pdfIn PDF document text
    • http://stolizstekla.ru/userfiles/file/suwipetulawuboruji.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/kinanedajemabakasipet.pdfIn PDF document text
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161ff02a340463---56416881503.pdfIn PDF document text
    • https://galaxytraining.examinationonline.com/files/mijiruke.pdfIn PDF document text
    • http://drukarnia-warszawa.pl/pliki/file/78256710738.pdfIn PDF document text
    • https://triatlonshop.cz/userfiles/file/tizivaxagid.pdfIn PDF document text
    • http://archive-2015.humandoc.pl/attachments/file/71947232660.pdfIn PDF document text
    • http://arabic.cz/ckfinder/userfiles/files/93668025305.pdfIn PDF document text
    • http://ecofincas.net/ckfinder/userfiles/files/37626377577.pdfIn PDF document text
    • http://jx4d.com/userfiles/file/gijobelitajugebisawete.pdfIn PDF document text
    • http://grupomagister.com.br/kcfinder/upload/files/verokipolaxarumedaju.pdfIn PDF document text
    • https://alstar.uz/images/shared/file/49412317306.pdfIn PDF document text
    • https://hkki.org/userfiles/files/medefumenokarataro.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/p0qk93o02fehjgsirl0mun8j3v/76829387954.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/332f137ab4ba9c54c56d1e2d29d43c36/sokopovoguvaf.pdfIn PDF document text
    • http://neoclassicalmansions.com/uplds/file/ralewulefeburulo.pdfIn PDF document text
    • http://www.organizacaoatos.org/admin/ckeditor/kcfinder/upload/files/diduvemawifazitopog.pdfIn PDF document text
    • http://chinahk-ip.com/chinahk_ip/html/files/editor/file/31486154794.pdfIn PDF document text
    • https://ldcpc.com/ckfinder/userfiles/files/59967470334.pdfIn PDF document text
    • https://nguyenthelong.net/userfiles/files/73904323551.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/662a8dfef01d70da5c857b3cfee6b4cb/16068434884.pdfIn PDF document text
    • https://purmoradiatoriai.lt/images/files/fipigisopojoratesexorax.pdfIn PDF document text
    • http://aiaato.com/FileData/ckfinder/files/20210917_31CDD9E367CA51A0.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d9cf297d73b---tazap.pdfIn PDF document text
    • https://gloriamus.org/Uploads/userfiles/files/munavafaligawapawoditeliw.pdfIn PDF document text
    • https://creativenursery.net/home/creative/public_html/ckfinder/userfiles/files/zisegazekeve.pdfIn PDF document text
    • https://pierreseche.fr/userfiles/file/95406164701.pdfIn PDF document text
    • http://atel-j.nl/uploads/files/4935352003.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ffc2f19300b---naxidozuvefabagarafera.pdfIn PDF document text
    • http://gzbaosui.com/uploadfile/files/bowagevulexezutime.pdfIn PDF document text
    • http://pay2pay.net/upload/file/segonuxepubu.pdfIn PDF document text
    • http://whipitleather.com/userfiles/file/88257913981.pdfIn PDF document text
    • http://xavitec.com/cliente/conteudos/files/56445498922.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003a6c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A6C5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003bde0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BDE0 22396 bytes
SHA-256: 9827290c3c54712bc33db5d689af3ff3e134b5e56a95ec5c5a4de84b1ff5ff9c
font_02_sfnt_off0003f85f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F85F 10148 bytes
SHA-256: 2bc426bec24c3e1687542aa9e3b2d9e56367316632245f733aebf629da4de175

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