Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff24e9f7cbe244ff…

MALICIOUS

PDF

212.9 KB Created: 2022-03-23 11:00:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: f3bb7b48ce086b06dfb8760e4eec8b68 SHA-1: b8bc008758fdf50f562f98b92e465eb689f2a14c SHA-256: ff24e9f7cbe244ffcdfc1eaae3e68b9a13e0cea709bab49b8523cad974c46442
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7196

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://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/qlr1m554u9nue3elf539anv71l/5732876498.pdf In PDF document text
    • http://voltgroup.com.ua/assets/kcfinder/upload/files/41244739295.pdfIn PDF document text
    • https://studybrilliant.online/app/webroot/img/userfiles/file/22915484949.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/abcfa328712f60b389d1959b41c52700/suxafugunolit.pdfIn PDF document text
    • https://uetty.xyz/js/ckfinder/userfiles/files/ruxapufobufajizuxuwe.pdfIn PDF document text
    • https://quatden.vn/webroot/img/files/18677949582.pdfIn PDF document text
    • http://indianmailbox.com/assets/images/userfiles/files/24567498701.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16220585d58ec1---7571081709.pdfIn PDF document text
    • http://theindianaccountant.com/pa/trainstation/uploads/image/file/40735822084.pdfIn PDF document text
    • https://rrhh.fronteraliving.com/imagenes/contenidos/files/59666257813.pdfIn PDF document text
    • http://atletika-pardubice.cz/files/file/tajedotagadofamekireleg.pdfIn PDF document text
    • https://magerp.org/upload/files/judubutuzukixixidojifak.pdfIn PDF document text
    • https://shyuyanchem.com/userfiles/file/24630810116.pdfIn PDF document text
    • https://www.amis-simserhof.fr/kcfinder/upload/files/86338305208.pdfIn PDF document text
    • http://lemarsk.sk/kcfinder/upload/files/zuzobala.pdfIn PDF document text
    • http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/60621688476.pdfIn PDF document text
    • http://eidatlantique.antevox.fr/UserFiles/medias/26014973225.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/lotulozuvavepozevulobi.pdfIn PDF document text
    • http://china-hold.com/UploadFile/file/20220311000443612.pdfIn PDF document text
    • http://ducthanhtam.com/uploads/userfiles/file/tuxogavezo.pdfIn PDF document text
    • http://lecieldesandes.fr/ckfinder/userfiles/files/83119813765.pdfIn PDF document text
    • http://zlzljc.com/uploadfile/file///2022031821443174.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/jifumizel.pdfIn PDF document text
    • http://geose.ru/userfiles/file/76497115369.pdfIn PDF document text
    • http://cidadania23pr.org.br/ckeditor/kcfinder/upload/files/53015975502.pdfIn PDF document text
    • http://hmarksltd.com/assets/ckeditor/kcfinder/upload/files/30878560056.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/xifuzazudovadatawesagoxo.pdfIn PDF document text
    • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/e1648ad8eeae98443668af7988e24851/71625801563.pdfIn PDF document text
    • https://coprose.com.mx/kcfinder/upload/files/17590675754.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=sheen+jimmy+neutron+brainPDF 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 extracted file (font_00_sfnt_off0002e63e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002e63e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e63e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E63E 10720 bytes
SHA-256: 35ba78b98c2702e271b07b07736702c3847e066899a06c508375bf5e96300748
font_01_sfnt_off0002fea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEA1 18032 bytes
SHA-256: ced46daaa9bfe9f1c23d37ec49495246ea51754eee2203b7c8daaaeb1f87e6af
font_02_sfnt_off00032d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D38 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9