Malicious PDF — malware analysis report

Static analysis result for SHA-256 191cd7a7c6aeebe7…

MALICIOUS

PDF

406.5 KB Created: 2022-02-27 09:55:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 66690b63acaf2e00ce306325de535aa3 SHA-1: f521daca9aab6a89a36e4ef440afc8e6fc6b9de5 SHA-256: 191cd7a7c6aeebe78e5032882724eb1a62bfb11a5c061e35a373b710d998aa44
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6119

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://mifuj.co.za/XSRYdR1H?utm_term=sweatcoin+apk+apkpure PDF link annotation
    • http://pololanna.com/user_img/files/65533492428.pdfIn PDF document text
    • http://cbstav.cz/file/rusuvilujezarap.pdfIn PDF document text
    • https://kapokcmassage.com/uploads/files/202111280944067237.pdfIn PDF document text
    • http://kusadasidentalclinic.com/img/userfiles/files/bogilegipotowono.pdfIn PDF document text
    • http://qkmedica.com/uploads/userfiles/file/garavigijitejifara.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/4updplao0lr6gukkvdj8mkpiar/xenojuvobopatapuwiwufe.pdfIn PDF document text
    • http://hpworld.hu/data/pic/Image/file/4801122571.pdfIn PDF document text
    • http://sattit.com/ckeditor/kcfinder/upload/files/nujigepuvaxotevinixomemod.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/4180b1219006e256ccaa3f3b075c9dc6/8065598335.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/wolasodojanufisowig.pdfIn PDF document text
    • https://dcoderesearch.com/uploads/51849724708.pdfIn PDF document text
    • http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/23631679682.pdfIn PDF document text
    • http://www.accl-calibration.com/login/ckfinder/userfiles/files/saforilala.pdfIn PDF document text
    • http://testplanet.nl/uploads/files/30794510836.pdfIn PDF document text
    • http://guerrazzi.info/userfiles/files/vugasovixaf.pdfIn PDF document text
    • http://newo.ru/files/files/70723856387.pdfIn PDF document text
    • http://whuntex.ru/userfiles/file/xawononizesuvezijola.pdfIn PDF document text
    • http://lightofislamonair.org/uploads/files/9289808747.pdfIn PDF document text
    • https://makenie.com/upload/files/56893244415.pdfIn PDF document text
    • http://osoboebludo.com/ckfinder/userfiles/files/1916961394.pdfIn PDF document text
    • http://xn--80aa5alfu.kz/file/likozusutakuwujutu.pdfIn PDF document text
    • http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/34161971506.pdfIn PDF document text
    • https://www.ajmetaldesign.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/puwivola.pdfIn PDF document text
    • https://bakkerijkamstra.nl/userfiles/files/54210517639.pdfIn PDF document text
    • https://ms01bet.com/contents/files/46328445432.pdfIn PDF document text
    • http://alisawedding.com/upload/users/files/16407939235.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16169d082b9384---81571785271.pdfIn PDF document text
    • http://leeclinic.kr/userData/board/file/39969747013.pdfIn PDF document text
    • http://deforma.it/userfiles/files/dujutapeselimofe.pdfIn PDF document text
    • http://quaisetoiles.fr/img_pages/file/bibapipubifamiwevepawunud.pdfIn PDF document text
    • https://ln80.cn/filespath/files/20211130165410.pdfIn PDF document text
    • https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/78459018094.pdfIn PDF document text
    • http://aaz.sk/editor_uploads/files/motukibolonefotajuma.pdfIn PDF document text
    • https://lyna-garage.lynacarrental.com/htdocs/cljr/data/files/67942651139.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/meleriminaxojifop.pdfIn PDF document text
    • http://shiokuda1.com/contents//files/rodarizugurajijedu.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_off0005e8df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8DF 10504 bytes
SHA-256: 34755553282f01b83604cf846550a1c4ae7047fae31aa71ea5ff3e27bef3524e
font_01_sfnt_off000600ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600FF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0006181b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6181B 18928 bytes
SHA-256: 3c10d14d72a7382c07c6d8d4beb7fa2c6c326522be9bf2b3f40cc7ce21c297c8