Malicious PDF — malware analysis report

Static analysis result for SHA-256 25ceb0f61c67c775…

MALICIOUS

PDF

336.3 KB Created: 2022-03-16 17:01:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 273111646100536662c9622e3b230df0 SHA-1: 68b0341fef89a66520aafb961fd8c72ae71cfa72 SHA-256: 25ceb0f61c67c7756ba7c691822ac5cb306db3ad33dab7361055952db8487404
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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://mifuj.co.za/XSRYdR1H?utm_term=blacklight+retribution+pc+full PDF link annotation
    • http://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/33923079060.pdfIn PDF document text
    • https://www.miroku-jp.com/system/js/kcfinder/upload/files/57936431790.pdfIn PDF document text
    • http://nevacomposites.com/public/kcfinder/upload/files/kidiparopatosupasupaja.pdfIn PDF document text
    • http://www.chestheart.org/assets/ckeditor/kcfinder/upload/files/vuwoxawobejiteniruxawa.pdfIn PDF document text
    • https://apotekatia.ba/fajlovi/45027992298.pdfIn PDF document text
    • http://leviedelsignore.it/gallery/files/foxezabilanegejaj.pdfIn PDF document text
    • http://primaria-ciocirlia.ro/media/file/61050184775.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622308472be4e---jisasudofoxodoru.pdfIn PDF document text
    • http://dolnoslaskialarmsmogowy.pl/imgturysta/files/93083409250.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/tebiketi.pdfIn PDF document text
    • http://www.examnotice.in/uploads/files/29897577687.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621377549a558---guzakobalaxafunaxuj.pdfIn PDF document text
    • http://xn--djr00fsyfv0o5qgy9u.net/filespath/files/20220216051932.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162037c6ab76bc---12826373525.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/17826351090.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/puvipadufunizosul.pdfIn PDF document text
    • http://lesboutiquesquercitaines.com/kcfinder/upload/files/61039840502.pdfIn PDF document text
    • https://aa-nusd.jp/48484726042.pdfIn PDF document text
    • http://cleanking.net/userData/board/file/77594485943.pdfIn PDF document text
    • https://htchninc.com/d/files/puwejedasaxorow.pdfIn PDF document text
    • http://theofficeplus.com/userfiles/file/gomubutoluxuluwa.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16220fec5ba176---2781401642.pdfIn PDF document text
    • http://siamsnail.com/media/userfiles/files/xajunazexapebipurikoxos.pdfIn PDF document text
    • http://gestaocipa.com/public_html/Imagens/file/dulemaz.pdfIn PDF document text
    • https://licensing-centre.poweredbypaf.com/files/nudab.pdfIn PDF document text
    • https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/98360242486.pdfIn PDF document text
    • http://lam.kiev.ua/kcfinder/upload/files/44803469388.pdfIn PDF document text
    • http://frezerovka.by/images/fxeditor/file/57058510806.pdfIn PDF document text
    • http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/faserasiro.pdfIn PDF document text
    • https://sagarexpress.com/userfiles/file/faruvinoped.pdfIn PDF document text
    • http://cuadepthanglong.com/images/ckeditor/files/suwivomibegaxigoribaxab.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 extracted file (font_00_sfnt_off0004d0f7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d0f7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d0f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D0F7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004e812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E812 18256 bytes
SHA-256: d7b7c0466df805cd77e04dd5a544b126159d0758869752dc182e810ee3197d49
font_02_sfnt_off00051765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51765 10976 bytes
SHA-256: 8b3395996f6c0357a9fda895046c12ba0b4ebd69154cdcf2ef1eb590419678c3