Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbee03cd837d997b…

MALICIOUS

PDF

297.8 KB Created: 2022-03-12 00:20:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: f90daafb6f3f799c8572720180cecb5d SHA-1: 192b1837376c760c9e20808ffe9c8bc5caa40843 SHA-256: cbee03cd837d997b9b58943227be56cc50b7d0215ca1c21b5d327cc7c301e99d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7754

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=persona+5+second+test+answers PDF link annotation
    • http://yourhealthyanswer.com/ckfinder/userfiles/files/88500868985.pdfIn PDF document text
    • https://pvesc.vn/uploaded/file/monidemigali.pdfIn PDF document text
    • http://svm.kalistecom.org/img/files/85693389155.pdfIn PDF document text
    • http://bdsps.org/slbdavbatala/userfiles/file/82552745813.pdfIn PDF document text
    • http://hasomedia.com/userfiles/file/vazazeneperivunaf.pdfIn PDF document text
    • http://paneldeconsos.com/userfiles/file/rakoxomijifufoxulexeza.pdfIn PDF document text
    • https://modellszerviz.hu/userfiles/file/19660946548.pdfIn PDF document text
    • http://rmgoals.com/userfiles/files/83735856129.pdfIn PDF document text
    • http://znsedu.net/admin/ckeditor/kcfinder/upload/files/3604755492.pdfIn PDF document text
    • http://www.comhairleuladh.com/uploads/files/45886646441.pdfIn PDF document text
    • https://eijo.in/ckfinder/userfiles/files/saxitewama.pdfIn PDF document text
    • https://tennis-samara.ru/img/file/zukidojara.pdfIn PDF document text
    • http://korea-seals.com/ckfinder/userfiles/files/72907863410.pdfIn PDF document text
    • http://mgok.jutrosin.eu/userfiles/file/fidem.pdfIn PDF document text
    • http://a2kat.ru/userfiles/file/kinakapuvipubuta.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f867767a56a---gebeguvo.pdfIn PDF document text
    • http://ailin.kz/js/kcfinder/upload/files/88932527841.pdfIn PDF document text
    • https://hondaotohaiphong.vn/upload/files/96531515445.pdfIn PDF document text
    • http://www.transfuzia.org/gfx/administration/js/ckeditor/kcfinder/upload/files/73098183355.pdfIn PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/vdqb4pducr1bnolhsvs6tmldbm/99270290419.pdfIn PDF document text
    • http://lube-stc.com/ckfinder/userfiles/files/63318697359.pdfIn PDF document text
    • http://mxagproducts.com/upload/browse/file/72799973207.pdfIn PDF document text
    • http://lednotice.com/userData/board/file/55937772845.pdfIn PDF document text
    • https://banderlogclub.ru/Files/file/30163273908.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16222a9adde976---bujowoxufunami.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_off00043482.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043482.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43482 10448 bytes
SHA-256: 6cdf2bec4cf82dec9eb2abde9a474e3d987a059164f4a57e10d042649cb17cdc
font_01_sfnt_off00044c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44C82 19600 bytes
SHA-256: 2d874d1018999bb089163e82cb7f0f2cdda581c27a78771d50c3d56b730bf4b3
font_02_sfnt_off00047fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47FCB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9