Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d816ab89ded34b…

MALICIOUS

PDF

400.9 KB Created: 2022-03-07 23:09:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 201082009f0d7f11f58c1ce4b9f6472a SHA-1: 554a1de5f54b52b41282de83398cfec55b1b1b39 SHA-256: c5d816ab89ded34b4eb283e9888ccb65a600482b7778032a1c19c6f85a9a8957
182 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6418

Heuristics 8

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://loheb.co.za/XSRYdR1H?utm_term=free+soccer+trading+card+template PDF link annotation
    • http://theflowermaker.com/uploads/File/rivaxolagoxozosefono.pdfIn PDF document text
    • https://tainandentist.com/uploads/files/202202260111378363.pdfIn PDF document text
    • http://bresnahan.sfiab.com/data/userfiles/file/74124876983.pdfIn PDF document text
    • http://ctcinsulator.com/uploads/file/69536035129.pdfIn PDF document text
    • https://habibitoursegypt.com/ckfinder/userfiles/files/wedujujekax.pdfIn PDF document text
    • http://location-a-la-reunion.com/js/kcfinder/upload/files/88140516725.pdfIn PDF document text
    • https://santeh.md/img/files/96779418912.pdfIn PDF document text
    • http://www.sudeshnamaulik.com/fckimages/file/53117107716.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/56206526707.pdfIn PDF document text
    • http://sergeybazarov.ru/file/polobedixodawulavapek.pdfIn PDF document text
    • https://pma-germanlct.com/uploads/files/xasorujekabiwufupewu.pdfIn PDF document text
    • http://tgroupsrl.com/userfiles/files/nutafubapafidomofosevulep.pdfIn PDF document text
    • http://llux.vn/uploads/files/sonoberonigusibidalemagi.pdfIn PDF document text
    • http://kuppersbusch.hu/userfiles/files/59235648932.pdfIn PDF document text
    • http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/gikavujuserimed.pdfIn PDF document text
    • http://viaecommerce.com.br/kcfinder/upload/files/31140498841.pdfIn PDF document text
    • http://otestmanager.com/club/data/userfiles/file/20220209071543.pdfIn PDF document text
    • https://hongdung.vn/ckeditor/images/files/warosamozetepisepaka.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1620eb499f1904---xewexinavevuzuzobugalaxul.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/24018262255.pdfIn PDF document text
    • http://musorcentrum.hu/files/article/file/nadakabipuxeda.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620873d1e7355---xixiwerulo.pdfIn PDF document text
    • http://afgesproken.nl/kcfinder/upload/files/serililamewiliv.pdfIn PDF document text
    • http://ebiddex.com/kcfinder/upload/files/rutuvavetenor.pdfIn PDF document text
    • http://tangiahoang.vn/Images_upload/files/sonokejumadupu.pdfIn PDF document text
    • http://skinct.com/upload_file/file/Fl202202111350496672.pdfIn PDF document text
    • http://siltherm.com/ckfinder/userfiles/files/27076808002.pdfIn PDF document text
    • http://mhzsolutionz.com/userfiles/file/misawadamu.pdfIn PDF document text
    • http://mvsexpo.ru/admin/ckfinder/userfiles/files/46017976033.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/c0cglkq9tst5id1iql3jcdj9a2/98033997857.pdfIn PDF document text
    • http://isvpro.com/custom/files/sidapad.pdfIn PDF document text
    • http://jayeonrak.com/upfile_editor/2022/files/jaxug.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/lefemadugozenezanonotuf.pdfIn PDF document text
    • https://aczv.fr/userfiles/file/17149216906.pdfIn PDF document text
    • https://momentous-inst.com/uploads/image/files/babirogozuwumotej.pdfIn PDF document text
    • https://bigsao.com/kcfinder/upload/files/bibopemeboxetedavarevuso.pdfIn PDF document text
    • http://www.oftalmed.com.br/files/ckeditor_custom/kcfinder/upload/files/3564992427.pdfIn PDF document text
    • https://thehideawayresortpattaya.com/userfiles/files/pofudivulefe.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_off0005d96f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D96F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005f08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F08F 10832 bytes
SHA-256: c89b6b91af754102f67b458e1c097c58be2b7c2d598483a6802a727a7f664321
font_02_sfnt_off0006094a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6094A 16332 bytes
SHA-256: 04b734803391219b00d1ad380ada1523051ac8de55660743709e19f450e1a07c

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