Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af38c481e0d06dc…

MALICIOUS

PDF

708.3 KB Created: 2022-02-04 02:49:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 80c83d2755cad084144477a2204361f4 SHA-1: 2c8074f76ccdb65f724bf750f2efb3d5e64b480c SHA-256: 4af38c481e0d06dc2a52048b7cc91b81f972cd7a1b17c26648fada10f6cb0715
136 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2162

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://ragaz.co.za/XSRYdR1H?utm_term=odia+song+2019+free PDF link annotation
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611889008918a---toxarebevokinilidaf.pdfIn PDF document text
    • http://yds-wcv.jp/free_images/files/39774163465.pdfIn PDF document text
    • https://ms01bet.net/contents/files/44083695106.pdfIn PDF document text
    • http://matrix-work.com/uploads/files/pilajugufepapumu.pdfIn PDF document text
    • http://compsult.net/userfiles/file/30703363708.pdfIn PDF document text
    • http://zopos.zohukum.com/ckfinder/userfiles/files/31400872653.pdfIn PDF document text
    • https://nusantarabet4d1.com/contents/files/22264733865.pdfIn PDF document text
    • https://quangcaowebsitecomvn.xemlaco.com/uploads/files/pemavigepisejisabonozi.pdfIn PDF document text
    • http://nadiadsa.org/userfiles/file/37082678385.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618ab617b0872---34624219059.pdfIn PDF document text
    • http://envigest.cz/upload/file/kamezala.pdfIn PDF document text
    • https://tradingphrases.net/userfiles/files/dizirew.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/jeziguribesibikozupi.pdfIn PDF document text
    • http://gattoneva.pl/pages/userfiles/file/94966163691.pdfIn PDF document text
    • http://glenbrooksouth1970.com/clients/1/17/17fc1bd13d5538a69f39d58c869d2fc5/File/legaravulozajomefopeka.pdfIn PDF document text
    • http://behtarinekhodetbash.com/files/files/tilajojoruv.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16142afd481e7a---68173072134.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a252f03afdd---pazilej.pdfIn PDF document text
    • http://chineseclothingonline.net/File/pefod.pdfIn PDF document text
    • https://starfoil-mail.nl/uploads/wysiwyg/39369088194.pdfIn PDF document text
    • http://dispensapertutti.com/userfiles/files/kilikifevera.pdfIn PDF document text
    • http://dtyxbpzx.com/filespath/files/20220130025735.pdfIn PDF document text
    • https://safewatersolutions.in/ckfinder/userfiles/files/27697107871.pdfIn PDF document text
    • http://crm333.com/documentos/file/47022757905.pdfIn PDF document text
    • http://ottomaniantextile.com/userfiles/file/56066247599.pdfIn PDF document text
    • http://ownlines.com/upfiles/file/gilizadinujutowiguwis.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/wiwenepipu.pdfIn PDF document text
    • https://ajambary.com/userfiles/file/51644536723.pdfIn PDF document text
    • http://chia4kids.ru/ckfinder/userfiles/files/mudosajemiduzaxajigis.pdfIn PDF document text
    • https://foundationkuzmanov.com/files/77987713730.pdfIn PDF document text
    • http://uptownherndon.com/uploads/files/zisoxumelaxumufodefe.pdfIn PDF document text
    • https://unibel.pl/pliki/upload/file/xikenekixisoxo.pdfIn PDF document text
    • http://marcobernini.it/userfiles/files/55967492334.pdfIn PDF document text
    • http://megalabsrl.it/userfiles/files/vupakafipevogagafezazi.pdfIn PDF document text
    • http://veoguidecostarica.com/ci/userfiles/files/76664993458.pdfIn PDF document text
    • http://ilkemymm.com/image/files/ditojusapexexedojunibo.pdfIn PDF document text
    • https://www.posluh.hr/ckfinder/userfiles/files/76456672686.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_off000aa665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA665 16476 bytes
SHA-256: 603715470e5013bdb9a73ceb112964e7c77397daaec39152a46056546e811351
font_01_sfnt_off000ad0f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD0F3 10872 bytes
SHA-256: dec378a4ea78030fd6fae44c0c4ee9449e250e26d20dfe2a4928030877fd2b02
font_02_sfnt_off000aea13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEA13 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9