Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d56e78c32aab76…

MALICIOUS

PDF

512.8 KB Created: 2022-02-26 05:23:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: d7344267aa0a7511c83bc3061ea90d89 SHA-1: e39064329d270768b32a1c576c1824a40177a4aa SHA-256: c7d56e78c32aab766df8eaed9f6cd69e19127e6fad3ec3237e7b57a0077112ab
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4998

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://colod.co.za/XSRYdR1H?utm_term=texas+comptroller+sales+tax+reports PDF link annotation
    • https://inovadmin.pavicer.pt/uploads/files/regolet.pdfIn PDF document text
    • http://xn--j1aai7d.xn--p1ai/userfiles/file/kemuweruvufumobojenis.pdfIn PDF document text
    • http://eur-idea.com/userfiles/file/12166443116.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/f60150266942b0ddf4703e14a6cf8e5d/gelurefopunalerebazes.pdfIn PDF document text
    • http://hmarksltd.com/assets/ckeditor/kcfinder/upload/files/87489566462.pdfIn PDF document text
    • http://maquinandoysubastando.com/dleyes/admin/fotos/file/kapenena.pdfIn PDF document text
    • http://aan.kz/ckfinder/userfiles/files/35728986779.pdfIn PDF document text
    • http://clipsttm.com/userfiles/file///10383109475.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/stnuabgif46cj3kt916qm0ckuv/totijalifelariwinivod.pdfIn PDF document text
    • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/bapadobodes.pdfIn PDF document text
    • https://veaodaibrahma.com/uploads/image/files/49522282306.pdfIn PDF document text
    • http://xn--9i1b14l32gg2dsybq3b.com/upload/fckeditor/file/50710767335.pdfIn PDF document text
    • http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/koxanegi.pdfIn PDF document text
    • http://weddingfavoursfor.co.uk/kcfinder/upload/files/45561650327.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/161791b229b408---sarixo.pdfIn PDF document text
    • http://sdtech-kh.com/kcfinder/upload/files/64403231332.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/2cad2cc6c2ba85d92ef76669feaa7892/xemedusulu.pdfIn PDF document text
    • http://iphonedown.com/ckfinder/userfiles/files/gesuj.pdfIn PDF document text
    • http://tcyy88.com/userfiles/file/2021110504162273499.pdfIn PDF document text
    • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/55291619639.pdfIn PDF document text
    • http://innovatepc.com/userfiles/file/kufibajazoroxizaki.pdfIn PDF document text
    • https://ita.kru.ac.th/ckfinder/userfiles/files/nadoz.pdfIn PDF document text
    • http://jkbprivateiti.com/userfiles/file/66004610000.pdfIn PDF document text
    • https://hadimehdi.org/userFiles/files/zenebeviw.pdfIn PDF document text
    • https://minhjazzvietnam.com/kcfinder/upload/files/gudipe.pdfIn PDF document text
    • http://www.europesolidaire.eu/userfiles/files/nepefovepebeguxatijatos.pdfIn PDF document text
    • http://travelbilet.ru/sites/default/files/file/remaxe.pdfIn PDF document text
    • http://nahwoo.com/userData/ebizro_board/file/20691651933.pdfIn PDF document text
    • http://thepducphat.com/upload/files/43157421083.pdfIn PDF document text
    • http://qhchemicalsfeed.com/upload/files/3382879882.pdfIn PDF document text
    • http://taigesw.com/upload/files/zadumupeze.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ffd035578e4---65387125159.pdfIn PDF document text
    • https://tonicsuitemusic.com/userfiles/files/xawed.pdfIn PDF document text
    • https://beauti-full.ru/uploads/files/jonelovixiluzefoxeg.pdfIn PDF document text
    • https://27061010.com/uploads/files/202110290621056597.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_off0007934f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007934f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007934f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7934F 19096 bytes
SHA-256: e79f2094b0ddfa7619df77909bbb506f66af0f7c345c1452b43eddc8f9167a49
font_01_sfnt_off0007c4c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4C9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007dbe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBE9 10404 bytes
SHA-256: 1dac9478c718e1dafa3598f7959104bc0b05f53ef0e7aae6517f1938095a2a95