Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73ba7c1f884107…

MALICIOUS

PDF

368.6 KB Created: 2022-03-28 13:59:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 2e6c5c7add2909db9be9c920d158963c SHA-1: 737991482492c9a42168f3149fac91f447d8ba7d SHA-256: cd73ba7c1f8841073fc95968bc44982196801d36f00297505fa1a8b1b0f686b9
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5061

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
  • 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.
  • 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.
  • 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://norin.co.za/XSRYdR1H?utm_term=high+school+musical+3+cda+lektor+pl PDF link annotation
    • https://creteservices.com/FCKeditor/userimages/file/47004873495.pdfIn PDF document text
    • https://speckletrack.com/update/editor/file/tilemipubofiziv.pdfIn PDF document text
    • https://maymac.info/userfiles/file/wadifunumorajawuw.pdfIn PDF document text
    • http://fivelscope.net/fckimages/woxujadozalasifidari.pdfIn PDF document text
    • https://megastill.com/uploads/files/19851262714.pdfIn PDF document text
    • http://poaglasses.com/uploads/files/202203231200223044.pdfIn PDF document text
    • https://ruta.hu/ckfinder/userfiles/files/69754034371.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623b6c8f122ce---pimujolal.pdfIn PDF document text
    • http://xn--om2b17qba631m.com/files/Upload/file/20535966051.pdfIn PDF document text
    • http://lotyzapoznawcze.pl/cms/files/61299019091.pdfIn PDF document text
    • http://personaleducador.com.br/ckeditor/kcfinder/upload/files/logesirufulewugetelovu.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/govazipeseropegefiz.pdfIn PDF document text
    • http://www.cidadania23pr.org.br/ckeditor/kcfinder/upload/files/zawovi.pdfIn PDF document text
    • http://wideanglepackaging.com/ckfinder/userfiles/files/52862109421.pdfIn PDF document text
    • http://szjwwj.com/userfiles/file///49595608567.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/32d8a1f3c7854607aee04f9480617191/beturarukinig.pdfIn PDF document text
    • http://doicoffee.co.jp/js/kcfinder/upload/files/dodubuxugibo.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623e1d7dc849e---66409981483.pdfIn PDF document text
    • http://akekaluck.com/ckfinder/userfiles/files/87867651070.pdfIn PDF document text
    • http://corse.annuaire-regional.com/ckfinder/userfiles/files/26532963503.pdfIn PDF document text
    • https://22importexport.com/eimages/file/bukokulibitapo.pdfIn PDF document text
    • http://teacherandtraining.com/coj_u/KK/userfiles/files/rituwanomofulexanagivox.pdfIn PDF document text
    • http://lovesenergy.nl/file/widiru.pdfIn PDF document text
    • http://pollibox.com/assets/uploads/files/manepitirunof.pdfIn PDF document text
    • http://colegiosantarosa.com/uploads/imagem/file/16880356895.pdfIn PDF document text
    • https://aventura-agence.lu/userfiles/files/todabelebani.pdfIn PDF document text
    • http://travelweeklearningcenter.com/app/webroot/upload/files/bogupetodevefu.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620bcaf3ccd04---gadepodenalukosoko.pdfIn PDF document text
    • https://nisseiplastic.com/up_images/exp/files/96353787595.pdfIn PDF document text
    • http://ticaproduce.com/ckfinder/userfiles/files/35653716789.pdfIn PDF document text
    • http://cmcaudio.com/user_upload/files/9342269110.pdfIn PDF document text
    • https://sabrinacoiffure.com/userfiles/file/97721519958.pdfIn PDF document text
    • http://operahazyborlovagok.hu/browser/files/wuvufanudebeluzokamep.pdfIn PDF document text
    • https://www.znackakvality.info/files/74847658995.pdfIn PDF document text
    • https://www.marthomattcollege.org/admin_panel/kcfinder/upload/files/3825284812.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20220310112903.pdfIn PDF document text
    • http://gongin.humenia.com/upload/userfiles/2022/02/files/220226130557.pdfIn PDF document text
    • https://vieclamlaocai.vn/webroot/img/files/77614838358.pdfIn PDF document text
    • https://padservhosting.com/userfiles/file/muludoni.pdfIn PDF document text
    • http://kingkady.com/uploadfile/files/jixowimebevasedapovuzuzut.pdfIn PDF document text
    • https://cvr.repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/getupokibome.pdfIn PDF document text
    • http://trufeel.com/ckeditor/ckfinder/uploadfile/files/majivew.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
    +1 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52923 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f
font_01_sfnt_off00053e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E9C 11212 bytes
SHA-256: b7f75bbe743f116c964bdd2be7d5dd02fb36b7bc68b037d8f925e13aed4ed0f9
font_02_sfnt_off000558b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x558B4 25260 bytes
SHA-256: ff1a997ae0537ebfe0f9436acd0f100618d9fad35fd4d27e314c6e7b64c60fdb
font_03_sfnt_off00059a31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A31 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9