Malicious PDF — malware analysis report

Static analysis result for SHA-256 191fee8c0bb69975…

MALICIOUS

PDF

668.2 KB Created: 2022-02-17 21:47:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 0291137a58e511df7d28d77c56cb9a94 SHA-1: 73300bfaa911cd8b911037ece913daa4addd5edd SHA-256: 191fee8c0bb699754754a9089542c88d6dcc5f26301e1a243dd568ad0ce9c0a1
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4061

Heuristics 7

  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=third+conditional+exercises+pdf+perfect+english PDF link annotation
    • https://casaalu.com/luutru/files/29387155801.pdfIn PDF document text
    • http://changjiujz.com/uploads/files/202110090745234839.pdfIn PDF document text
    • http://life-homeshop.buyout8.com/asset/uploads/files/salep.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16118b187a8964---96088893871.pdfIn PDF document text
    • https://juvelyrikoscentras.lt/Files/file/85195451777.pdfIn PDF document text
    • https://85097781.com/upload/files/birubarugololujenite.pdfIn PDF document text
    • https://leise.ru/admin/ckfinder/userfiles/files/35241673271.pdfIn PDF document text
    • http://vizilo-vizitura.hu/admin/kcfinder/upload/files/91249644399.pdfIn PDF document text
    • https://dursunguney.com/userfiles/files/reworijakefakumugigedino.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/319156295.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/b9ffs036g0bbnmj5dk51j5lhng/55783413779.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/ed00f33c014efbbcae340f3c536c3174/24255197644.pdfIn PDF document text
    • http://chanakyaaerospacedefence.com/userfiles/file/12023222078.pdfIn PDF document text
    • http://eunlocker.com/Images/Editor/file/23465245414.pdfIn PDF document text
    • https://senegal4d.com/contents/files/vofudimapimut.pdfIn PDF document text
    • http://www.klub112.cz/upload/files/penejafowelaxot.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161abeb176d697---7374744915.pdfIn PDF document text
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/77149284056.pdfIn PDF document text
    • http://siripanyalamphun.com/user_img/files/56299123306.pdfIn PDF document text
    • http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/furefisurafidagudegidugu.pdfIn PDF document text
    • http://architectureanddesign.it/userfiles/files/33819823569.pdfIn PDF document text
    • http://ndt-ultratech.com/files/73960609957.pdfIn PDF document text
    • http://icon-studios.com/userfiles/file/zolonixajeg.pdfIn PDF document text
    • http://ketoanantamhcm.com/uploads/files/jipitokoxabepojawawej.pdfIn PDF document text
    • https://turkihale.com/userfiles/file/In 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_off000a029e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA029E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000a19be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA19BE 10964 bytes
SHA-256: 351abd69020c94f957fd638098a733c51e2b0c7b05025c0b10fe3e972467bbc7
font_02_sfnt_off000a32eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA32EB 17996 bytes
SHA-256: 1eef663a6927d16aa4e64f9be2cade9b287a03410c6fabb6bae12b4539d720d8