Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d75a12838c40e0…

MALICIOUS

PDF

444.0 KB Created: 2022-05-03 19:29:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: c8af7bcd6085856758025f0af53227b8 SHA-1: 3602b93b0b7c05a0aa97b2d1c89cbcc8bb14ce0a SHA-256: c5d75a12838c40e0d38e1a8769bcd16296a5066f4ca6e5eddc987785133563f8
114 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3324

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.
  • 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=aparato+respiratorio+generalidades+pdf++pdf+gratis PDF link annotation
    • http://6nergy.fr/6nergy/sites/default/user/file/4352542766.pdfIn PDF document text
    • https://averakazan.ru/kcfinder/upload/files/16554835289.pdfIn PDF document text
    • http://www.romdom.pl/public/js/kcfinder/upload/files/18240274525.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/f73e4394751aad40055668023ef8bebc/renozuruwisoxugoko.pdfIn PDF document text
    • http://srtcivilnorth.com/ckeditor_file/files/1185383436.pdfIn PDF document text
    • http://xn--djr00fsyfv0o5qgy9u.com/filespath/files/20220213041204.pdfIn PDF document text
    • https://robvandamfoto.nl/UserFiles/files/29771344746.pdfIn PDF document text
    • http://eiffelflowersquesnel.com/userfiles/file/pelutunamivenogonuzu.pdfIn PDF document text
    • http://pbhdom.eu/userfiles/file/fusazokuvipinifa.pdfIn PDF document text
    • http://villapellegrino.it/userfiles/files/29758540903.pdfIn PDF document text
    • http://senkardeslerkereste.com/kcfinder/upload/files/92800470849.pdfIn PDF document text
    • http://www.saaegfpolis.org.br/ckfinder/userfiles/files/89850236721.pdfIn PDF document text
    • https://euforbiabulgaria.com/uploads/pages/files/35785454827.pdfIn PDF document text
    • http://lahma.pl/_u/userfiles/file/5911388542.pdfIn PDF document text
    • http://kavernoklub.com/campannas/file/bupafur.pdfIn PDF document text
    • https://nasco-ye.com/uploads/file/mopetobitokipabuvo.pdfIn PDF document text
    • https://ketex.com/trcgp/ckfinder/userfiles/files/nilosirimeluruxu.pdfIn PDF document text
    • http://thementalhealthadvocates.org/files/userfiles/file/tugagitevutujejusu.pdfIn PDF document text
    • http://swiftnb.com/ckfinder/userfiles/files/dugosuvevoki.pdfIn PDF document text
    • https://goez3.com/10005001208290177/ckfinder/userfiles/files/rabazudela.pdfIn PDF document text
    • http://investbuild.ru/var/upload/file/beganiwapowopojatabe.pdfIn PDF document text
    • http://tabbanbros.com/admin/fckeditor/editor/filemanager/connectors/upload/file/14159078378.pdfIn PDF document text
    • http://hometextiles-consultant.com/ckfinder/userfiles/files/70370371578.pdfIn PDF document text
    • https://mannoorpally.com/uploads/file/lumuletenirapi.pdfIn PDF document text
    • https://villagrancanaria.bookipro.com/js/libs/ckeditor/plugins/kcfinder/upload/files/nedozaluvubik.pdfIn PDF document text
    • https://indirimlipin.com/calisma2/files/uploads/87930094618.pdfIn PDF document text
    • https://amc-lda.com/assets/kcfinder/upload/files/79759294638.pdfIn PDF document text
    • https://raljob.com/userfiles/file/nuvunebu.pdfIn PDF document text
    • http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/lasezowomigewenadag.pdfIn PDF document text
    • http://mottaing.eu/userfiles/files/xadir.pdfIn PDF document text
    • https://nocrime.cntwn.org/ckfinder/userfiles/files/96319823319.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/0vu7os2q5muh2u9un3h7n3n7aa/94153389147.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006714f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6714F 20240 bytes
SHA-256: 79c5a97c5a7d8652f4b8a2b4594bb952ef8f6d7699f88ba102511add7cf7c74f
font_01_sfnt_off0006a422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A422 1920 bytes
SHA-256: 3195f266329c7861c812d997d9f0c022d2df592b0f7b11f73ef7ecfe655f6d6c
font_02_sfnt_off0006ad09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD09 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0006c522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C522 10656 bytes
SHA-256: 15e3400094743f99a5c2afe49aa189aacc611f1f9b289bb57cf53c687710403c