Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7a7258b4e24590…

MALICIOUS

PDF

305.9 KB Created: 2022-01-19 20:46:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 482ae70fe193a5f2981cf1db4bf049a6 SHA-1: d1f426c7a6c0fa0f52e3ee6f9559653700478c44 SHA-256: cd7a7258b4e24590c55b1515518c221c4c470694379c151edb26f7e9201c9611
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7582

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://maconlux.lu/userfiles/files/wediseri.pdf In PDF document text
    • http://tw-jia.com/uploads/files/202112281307418467.pdfIn PDF document text
    • http://fc-junajted.com/upload/datoteke/67118244171.pdfIn PDF document text
    • https://koratspring.com/upload/file/xujokeluverub.pdfIn PDF document text
    • http://tlumacz-bialystok.pl/pliki/file/16539810159.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16185e8627f1c6---31229271239.pdfIn PDF document text
    • http://deaprogettazioni.it/userfiles/files/2399466291.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/tupizijekav.pdfIn PDF document text
    • https://cardion.dk/gfx/fckimages/file/jonuxuvuvatidopamo.pdfIn PDF document text
    • http://georgewongdesign.com/gwd/upload/files/28907179345.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c2926893ec5---rujalunijuse.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/16f1f6a4f83715931f0442ac4f3ae2cb/zawasib.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/sejabaxu.pdfIn PDF document text
    • http://apartmany.cucoriedka.sk/data/files/bufifotike.pdfIn PDF document text
    • https://www.pscoop.com.au/kcfinder/upload/files/14571507990.pdfIn PDF document text
    • https://bda.ch/ckfinder/userfiles/files/nizopalibovogimuwupalil.pdfIn PDF document text
    • http://gradn.ru/uploades/fckeditorfile/dejox.pdfIn PDF document text
    • https://cafemocion.com/userfiles/file/68751175782.pdfIn PDF document text
    • https://lgrdad.org.bd/assets/ckeditor/kcfinder/upload/files/51810783117.pdfIn PDF document text
    • https://mama-light.org/business_school/uploads/file/sinete.pdfIn PDF document text
    • http://www.maderas-navarro.com/ckfinder/userfiles/files/sizagemadure.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/3f079a1dfbf39bc06bc13b062aba45e0/98927291608.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/ss9n1g31183r2i8fs0gareeh9s/nulevomawalopiragefidomeg.pdfIn PDF document text
    • http://qapoll.com/2015/vat/upload/files/82420149787.pdfIn PDF document text
    • http://chandigarhdatarecovery.com/files/file/wabitenamimaw.pdfIn PDF document text
    • https://www.sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/vovurivizepibi.pdfIn PDF document text
    • https://www.macfer.com.pt/kcfinder/upload/files/vumugilozosuvavo.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b8662c4ae6c65b51c67c7eca5c91745c/22287432618.pdfIn PDF document text
    • http://archiwalna.slezanie.eu/userfiles/file/nimokulelifuvisofulado.pdfIn PDF document text
    • http://khmim.com/ckfinder/userfiles/files/rekabeju.pdfIn PDF document text
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/t9rvuv7kkpsph6mrra8g5bqj15/90357690516.pdfIn PDF document text
    • http://sva-jeanroze.com/xmedia/file/82257495433.pdfIn PDF document text
    • http://hairandoil.com/uploads/28588994375.pdfIn PDF document text
    • http://potlista.com/file/files/neralofalejigiveloz.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/Z3ufxtS7Wvw/uplcv?utm_term=converse+size+guide+euPDF 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 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_off00045e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E38 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000474dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x474DC 10376 bytes
SHA-256: 04185650840cad595d8740dc5540834f036d7514be5c3f55fb3f1f471f884bef
font_02_sfnt_off00048c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48C48 16912 bytes
SHA-256: 180f2abe51e76c68d0ae8a34885a6409f8ea4184a581245476728b70620633fd