Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbeff504ba99410e…

MALICIOUS

PDF

413.3 KB Created: 2022-03-01 11:05:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: a3666f8de939509033742a23252fac37 SHA-1: f06b2dd4e78ad346582e5952d0907c0419a564a5 SHA-256: cbeff504ba99410e48902f01aca794f1c6668fecc725f6d2ea0f6897f099133d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5599

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://sunuf.co.za/XSRYdR1H?utm_term=dingo+beach+fishing+reports PDF link annotation
    • https://libertavoyages.com/kcfinder/upload/files/xotolud.pdfIn PDF document text
    • http://pixel-pro.ru/upload/file/44485607756.pdfIn PDF document text
    • http://davidthurstonphotography.co.uk/ckeditor/kcfinder/upload/files/5017672839.pdfIn PDF document text
    • https://xyoaa.org/sites/default/files/files/xiromabaloroxixekojixuda.pdfIn PDF document text
    • https://rachelrom.com/rescontent/file/wukazufugavoluliwevoli.pdfIn PDF document text
    • http://temdientu.vn/images/ckeditor/files/bobelakad.pdfIn PDF document text
    • https://sabatti.hu/admin/kcfinder/upload/files/zadenadukulonifabu.pdfIn PDF document text
    • https://bigsao.com/kcfinder/upload/files/75498946662.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/uc1l3g9q3jut6gus92p39cg4km/96720779675.pdfIn PDF document text
    • http://groupeao.com/app/webroot/js/kcfinder/upload/files/28980152554.pdfIn PDF document text
    • https://marblobaths.com/app/webroot/img/files/migonulekijewoba.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/162173a06d8cc7---99207596487.pdfIn PDF document text
    • http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/bulisuwanunokodanevulufeg.pdfIn PDF document text
    • http://6nergy.fr/6nergy/sites/default/user/file/46175323624.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/xinaboxizaje.pdfIn PDF document text
    • https://entabe.com/upload/20220219/files/bofutuxelewatibadur.pdfIn PDF document text
    • https://dogodanang.vn/uploads/image/files/favoxu.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161fc90bcd0a1e---8416576140.pdfIn PDF document text
    • http://dautuck.com/uploads/userfiles/file/vununoxipokesafidur.pdfIn PDF document text
    • http://karaokejdi.com/ckfinder/core/connector/php/upload/files/40544179784.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/makiwofurawolukibaf.pdfIn PDF document text
    • http://brandiassociati.it/userfiles/file/10773912789.pdfIn PDF document text
    • http://henskeschildersbedrijf.nl/upload/kedivividubakedosodizini.pdfIn PDF document text
    • http://livestocksaltlicks.com/ckeditor/kcfinder/upload/files/wixena.pdfIn PDF document text
    • http://gabinetortodontyczny.eu/userfiles/file/fewaseledogot.pdfIn PDF document text
    • http://sambometal.com/dataroom/file/gutomojegefakadilaj.pdfIn PDF document text
    • https://travelshops.pl/userfiles/file/kepewituzuluwinogafa.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/modupezeziwabeg.pdfIn PDF document text
    • http://www.perlodrink.com/documents/xumezunusi.pdfIn PDF document text
    • http://tehnaplus.mk/tehnaplus/kcfinder/upload/files/84799446524.pdfIn PDF document text
    • https://hhwholesaleclub.com/admin/kcfinder/upload/files/zukugezoxeva.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 extracted file (font_00_sfnt_off00060558.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00060558.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60558 18544 bytes
SHA-256: 78267b257040e60b653dac9c32aff61ea0ad0aa8bb2c441a9f78eec093a402e0
font_01_sfnt_off00063638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63638 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00064d58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D58 10852 bytes
SHA-256: 56734e2264fa90138ae1e493d59459b7d28359279fa959f1e2f3b77cf125c65d