Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bc7bf58f689340…

MALICIOUS

PDF

406.7 KB Created: 2022-03-09 02:48:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 456a1e74dc61da5432d905b9a1373764 SHA-1: a9ecf5b91dc0f9dc477a038193ecbf8520fc15ca SHA-256: 88bc7bf58f6893409255d633200b67572af7fbe590ce2f95a9d458c87dac40b2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5598

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=oxford+discover+6+teacher%27+s+book+pdf PDF link annotation
    • https://projektovanje.info/userfiles/file/garolepuxoson.pdfIn PDF document text
    • http://praguynakorn.com/praguynakorn/picture/datapro/files/sakadafurilo.pdfIn PDF document text
    • http://remaining-mc.de/userfiles/file/kizifoxedabofa.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/1f9e846ec732b7493b51c7648707a508/23096082608.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/14582370334.pdfIn PDF document text
    • https://a-1commercialkitchenservices.com/ckfinder/userfiles/files/feguzafebameg.pdfIn PDF document text
    • http://concilianavarra.com/userfiles/files/rimotoboru.pdfIn PDF document text
    • https://test-ajpianos.lapetitemaisonduweb.fr/upload/files/7082963595.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16222c50cce439---welevumizal.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/rijadoka.pdfIn PDF document text
    • http://slovoveri.org/userfiles/gunopusimubizonon.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16224162912600---weroret.pdfIn PDF document text
    • https://svingenieria.cl/userfiles/file/kikununofefabezofoni.pdfIn PDF document text
    • http://afksport.cz/upload/files/buzarurewakunoveloma.pdfIn PDF document text
    • http://poliman.srv.br/assets/kcfinder/upload/files/94551163927.pdfIn PDF document text
    • https://amc-lda.com/assets/kcfinder/upload/files/zipoziman.pdfIn PDF document text
    • https://www.truckersplantparts.co.uk/ckfinder/userfiles/files/nomug.pdfIn PDF document text
    • https://goez1.com/10005001208290177/ckfinder/userfiles/files/41290057279.pdfIn PDF document text
    • https://mandaljeebanking.in/ckfinder/userfiles/files/sogikivowudanofijim.pdfIn PDF document text
    • http://liqaa-lb.com/files/userfiles/files/zimonazexatavumugikexebax.pdfIn PDF document text
    • http://z-sinpro.com/upload/files/gevinefatebimi.pdfIn PDF document text
    • http://qazaqbanki.kz/data/content/files/gigikexa.pdfIn PDF document text
    • http://temdientu.vn/images/ckeditor/files/21981710754.pdfIn PDF document text
    • http://www.luna1956.com/images/library/File/84939639742.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/tidixufeputek.pdfIn PDF document text
    • http://gazette.digifi.ca/newsletters//file/binufufodeninot.pdfIn PDF document text
    • http://iphysiology.ru/upload/sipipujunosa.pdfIn PDF document text
    • https://www.afsti.org/admin/kcfinder/upload/files/visafutukije.pdfIn PDF document text
    • http://bobmeetin.com/media/galleries/files/reged.pdfIn PDF document text
    • http://cmsdoc.blum-group.de/data/cmsdoc/userfiles/file/7618334831.pdfIn PDF document text
    • https://cowichanseniors.ca/userfiles/file/xudujikosisulasexem.pdfIn PDF document text
    • https://nexusmediation.nl/files/zonalegujapixuseg.pdfIn PDF document text
    • http://klimafertotlenites.hu/kcfinder/upload/files/nudomupopesomuxuxazud.pdfIn PDF document text
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/33744775283.pdfIn PDF document text
    • http://rvmwttc.com/ckeditor/kcfinder/upload/files/raranoweginofovofotezu.pdfIn PDF document text
    • http://hamzalegalservices.com/userfiles/file/27657249248.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/20934880304.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_off0005e7ff.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005e7ff.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7FF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005ff1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1F 11192 bytes
SHA-256: 98f8021111c4d2a05a0375c7698c11932847324254176149db6eb34feec022ec
font_02_sfnt_off00061961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61961 18476 bytes
SHA-256: e9bc16fc79e611ac4cecef9a9fbfff36b0b866ad6735951546703eada7b1b338