Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd4b57fdd868873…

MALICIOUS

PDF

276.7 KB Created: 2022-02-13 01:32:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 06a80049015c0f80c0e1be359f619cc0 SHA-1: 612bf654f283cd8e2079dae1ad7f43a8f390530a SHA-256: 3dd4b57fdd868873db22139fb76033a568af14bd34b2cd48031755c0e41a13d7
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

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://lovig.co.za/XSRYdR1H?utm_term=sip+cancellation+form+birla+mutual+fund PDF link annotation
    • http://vektorma.ru/uploads/assets/file/resaguvupineretekamid.pdfIn PDF document text
    • https://trade.inter-ural.ru/ckfinder/userfiles/files/7501213757.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/9rp86lub69q2q6k1nf9eegs2ht/78156371319.pdfIn PDF document text
    • http://fkm-lux.by/var/upload/file/36502777999.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/161d4c8a2b46f6---59080945514.pdfIn PDF document text
    • http://majorpropertygroup.com/userfiles/files/39087436989.pdfIn PDF document text
    • http://elmarahtravel.com/public/kcfinder/upload/files/69009954179.pdfIn PDF document text
    • https://ehlibeytalimleri.com/resimler/files/56227239156.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/b8ouuskko5bpi6ocavc8b9c51p/63137645740.pdfIn PDF document text
    • http://conservativista.com/js/ckfinder/userfiles/files/birenirasexanuvewosuz.pdfIn PDF document text
    • http://www.clinicainthera.com.br/kcfinder/upload/files/nafowigudezogetupugibode.pdfIn PDF document text
    • http://phutungquanghieu.com/app/webroot/files/ckfinder/files/18046427432.pdfIn PDF document text
    • http://humanlitech.com/files/files/58130052452.pdfIn PDF document text
    • http://gerocuki.hu/user/file/folirovifavexujajufiwirit.pdfIn PDF document text
    • http://galluccifaibano.com/userfiles/file/85623447630.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/161186c77903e5---31982874288.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/485eb2aa3e39d5bbc463298ba20ff6c0/7990814873.pdfIn PDF document text
    • http://lafenicealcamo.it/userfiles/files/5848666553.pdfIn PDF document text
    • http://satyavnetworks.com/fck_upload_images/file/vigalekupereruvewufiz.pdfIn PDF document text
    • http://flairpens.ru/uploads/file/mubedofoxepugibepefifujex.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e3e34d4dbc5---lezinu.pdfIn PDF document text
    • https://alhurwallpaper.com/Files/files/teximivagaxenos.pdfIn PDF document text
    • https://unosms.us/userfiles/file/merojutagugezoga.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/161da6e7f7b3e9---jedegibawededi.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ae076e06dff---90135499348.pdfIn PDF document text
    • http://tks-forever.com/upload/2021/08/20/file/35224895710.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_off0003e132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E132 10928 bytes
SHA-256: 05539e7751a6c34e763861261072d05de082b012dfee0bf23ed05b0e5ddb93ac
font_01_sfnt_off0003fa3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FA3E 19016 bytes
SHA-256: 6c728c8ed32a78a8751a313a047b732cde529d69a48291080f6d26f21f5e4a72
font_02_sfnt_off00042c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42C92 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9