Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcde5ec3fd322cf…

MALICIOUS

PDF

404.9 KB Created: 2022-02-05 09:29:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: f5c742f9436002db78aa5f6d7c78e0ac SHA-1: 1904027d5d60ec3aa51ac4725357b28a28e04973 SHA-256: 1dcde5ec3fd322cf53c9e00cc7f0aea43cdcc6bfb395ffc6e2f2386d68219eb2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7848

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://yoyep.co.za/XSRYdR1H?utm_term=design+methods+in+architecture+pdf PDF link annotation
    • http://skrabl.pl/www/rpbd/fck/file/walokepifiwanilosari.pdfIn PDF document text
    • https://alkirbilaw.com/userfiles/files/niluxukakolawisazudulig.pdfIn PDF document text
    • https://nabil-doukali.com/userfiles/file/tuxajujoko.pdfIn PDF document text
    • http://k-sta.kr/FileData/ckfinder/files/20220125_3BE7A17B82115A4E.pdfIn PDF document text
    • https://3territoires.kopro.fr/userfiles/file/welex.pdfIn PDF document text
    • https://travelbook.kz/kcfinder/upload/files/jefurol.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615b9c275a3c5---lalamonirajukibidad.pdfIn PDF document text
    • http://marketypik.pl/zdjecia/fck/file/57066791914.pdfIn PDF document text
    • http://gordostcrista.ru/userfiles/file/21224823917.pdfIn PDF document text
    • http://tasarimak.com/ckfinder/userfiles/files/gedilivezedopu.pdfIn PDF document text
    • http://yaolankungfu.com/kcfinder/upload/files/15095311403.pdfIn PDF document text
    • http://www.celso.org/download/rosobifugalovimize.pdfIn PDF document text
    • http://animalscipublisher.com/files/upfiles/file/lunobaputodumonazuwezutol.pdfIn PDF document text
    • http://sm300159.agchost.com/userfiles/files/goxunetuxuxeb.pdfIn PDF document text
    • https://hostsolutions.ro/app/webroot/files/userfiles/files/mejepewugo.pdfIn PDF document text
    • http://mevlanaasm.com/resimler/files/zosibazetew.pdfIn PDF document text
    • http://showpalmedical.com/userfiles/64746499815.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615586c29e25e---lokedamobamabugiwosotaxe.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/zojavima.pdfIn PDF document text
    • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/1cb71a01b4dc5ea7dacc451e7a7955a4/rerililaxozitumazofafuxul.pdfIn PDF document text
    • https://sapthagireesyathra.com/userfiles/file/kofidedibax.pdfIn PDF document text
    • http://maximaviajes.com/FCKfiles/file/30438675667.pdfIn PDF document text
    • http://sanarina.de/ckfinder/userfiles/files/10626404594.pdfIn PDF document text
    • http://tscyw.net/userfiles/file/20210807145120_8ejlgf.pdfIn PDF document text
    • http://www.pnl.ac.id/asset/kcfinder/upload/files/pamaxexosisikataxanilif.pdfIn PDF document text
    • https://on-call-anatomist.org/ckfinder/userfiles/files/lazigitijek.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/161c2bbc079448---dunokazunezotetudarowite.pdfIn PDF document text
    • https://www.oeg.co.th/template/backoffice/plugins/kcfinder/upload/files/%E0%B8%82%E0%B9%89%E0%B8%AD%E0%B8%A1%E0%B8%B9%E0%B8%A5%E0%B9%80%E0%B8%9A%E0%B8%B7%E0%B9%89%E0%B8%AD%E0%B8%87%E0%B8%95%E0%B9%89%E0%B8%99%E0%B9%82%E0%B8%84%E0%B8%A3%E0%B8%87%E0%B8%81%E0%B8%B2%E0%B8%A3%20OEG%20Teach%20in%20Thailand%202020.pdfIn PDF document text
    • http://qdfhyx.com/userfiles/file/mizozifopofeduroweneloz.pdfIn PDF document text
    • http://elskenecologie.nl/files/jiresekotirabazafomakuku.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/vezemix.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_off0005e7a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7A0 16860 bytes
SHA-256: 762e604c529ec5ddd1f483758bf53f1ed2eb5cf9a87ff26e732b007d1471f27c
font_01_sfnt_off000613a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613A8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00062ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AC8 11120 bytes
SHA-256: 0d2029f8c4a9e60b4de2336361fca022967a745703aca3dd65a4992c20996550