Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8bf15832be7649…

MALICIOUS

PDF

296.0 KB Created: 2022-03-25 10:46:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: bc6dff4478fc16c734de00350e27d282 SHA-1: 3aebede2489174068b5370b258da4ddabcd4c826 SHA-256: 2c8bf15832be7649c894f21a452271fddc83a5354196a45c2608c9ccc7008ecd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7430

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://cafij.co.za/XSRYdR1H?utm_term=bruno+mars+eminem+lighters+mp3 PDF link annotation
    • http://xn----ctbkoligb6ad4a1f1b.xn--p1ai/_images/files/rumuma.pdfIn PDF document text
    • http://ijfbacknumber.org/editor_up/pogejukixe.pdfIn PDF document text
    • http://triomil.cz/kcfinder/upload/files/dovozedikawova.pdfIn PDF document text
    • https://www.officinasapori.com/_admin/kcfinder/upload/files/tivudinopoxa.pdfIn PDF document text
    • http://saga.diamonds/uploads/ckfinder/files/5849000769.pdfIn PDF document text
    • http://sevenseahotel.com/uploads/images/files/92349669137.pdfIn PDF document text
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/k7cv6cm0pa3cerc06e3vcob5d1/66689283919.pdfIn PDF document text
    • http://travelbilet.ru/sites/default/files/file/bubafumetewuxokifiliw.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user//file/_0048152001645463332.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16200c02855093---gadumojilow.pdfIn PDF document text
    • https://garmin1.ddbseven.cl/userfiles/file/21547856590.pdfIn PDF document text
    • http://wsm.hk/images/files/zonewe.pdfIn PDF document text
    • http://kronikarp.pl/ckfinder/userfiles/files/92388223462.pdfIn PDF document text
    • http://polyacer-ecp.com/userfiles/files/20220205_094546.pdfIn PDF document text
    • https://www.mediawerf.nl/bundles/store24backoffice/ckfinder/userfiles/files/69084689129.pdfIn PDF document text
    • https://galerie-louise.be/userfiles/files/kinulavusosuborokune.pdfIn PDF document text
    • http://fgsconsulta.com.br/ckfinder/uploads/userfiles/files/jonezuvezipokes.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16204847a4cf62---863239295.pdfIn PDF document text
    • http://hrampetraipavlavosstanovlenie.ru/content/images/user/file/faxodoseneza.pdfIn PDF document text
    • http://part-service55.ru/kcfinder/upload/files/46035839041.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1623c46be6c48d---modozivasedojodoteviniw.pdfIn PDF document text
    • http://desushibar.com/userfiles/file/41183030800.pdfIn PDF document text
    • http://sowaprojekt.pl/files/file/vomikewokuruge.pdfIn PDF document text
    • https://kgn.pl/files/file/33369938518.pdfIn PDF document text
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/162219ae89ddad---rakavadewotevavobimejiwof.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16230d3d8249f3---linewu.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/ziwubibibowelemex.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/162374ceceae1f---16909141110.pdfIn PDF document text
    • http://nijiclothing.com/assets/ckeditor/kcfinder/upload/files/97247546253.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_off00042d45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42D45 19448 bytes
SHA-256: f05f6c68a13ba7f45b714bbbaa87b0e6c3b6e6675c2de72a6a64c7e71d138690
font_01_sfnt_off00046059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46059 11024 bytes
SHA-256: 2b0d2c682673edc7f1befbfdf525456b8b8aba210ac4147aaf972f9c12e9aedf
font_02_sfnt_off000479d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x479D6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9