Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfcb72fad0f3068…

MALICIOUS

PDF

71.9 KB Created: 2022-04-05 17:34:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 35e37d755d7b63526190ce116af5b054 SHA-1: 66d035edc51537eccb66d035700007581393f86a SHA-256: 6dfcb72fad0f3068ac3424d45e0084fa621c9a07fd348fcbc3ced7539e569daa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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/YmrXLWy8?keyword=how%20to%20fix%20water%20dispenser%20on%20electrolux%20refrigerator PDF link annotation
    • http://av72-reklama.ru/userfiles/file/16484556790f03b4b423e63127b08c.pdfIn PDF document text
    • https://mtmnetwork.net/uploadEditor/files/46642877354.pdfIn PDF document text
    • https://tawudefategubo.weebly.com/uploads/1/3/5/9/135974656/xoredudituvezujazi.pdfIn PDF document text
    • https://sheenabusesandcoaches.com/userfiles/file/65911589216.pdfIn PDF document text
    • http://cleanyachts.it/writable/public/userfiles/file/zupasevinijevoxog.pdfIn PDF document text
    • http://keifo.ru/ckfinder/userfiles/files/vajafovosof.pdfIn PDF document text
    • http://visit-pune.com/userfiles/file/86886667547.pdfIn PDF document text
    • https://bosevexoliwi.weebly.com/uploads/1/3/4/5/134585498/df4f081.pdfIn PDF document text
    • https://vefigemeg.weebly.com/uploads/1/3/4/3/134368147/8774959.pdfIn PDF document text
    • https://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/pikejez.pdfIn PDF document text
    • https://mytalk7.com/_UploadFile/Images/file/mevidewosobip.pdfIn PDF document text
    • http://kkc1.org/htdocs/cljr/data/files/zunet.pdfIn PDF document text
    • https://gipavibipo.weebly.com/uploads/1/3/4/6/134654588/wonitirose_bujepagozox_fozezovakezi.pdfIn PDF document text
    • https://vifabuwu.weebly.com/uploads/1/3/1/6/131606679/2948784.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/qnej8r6dqb7ref8j0063s8hhhr/gamobarelolujuxakew.pdfIn PDF document text
    • http://ort168.com/upload/ckeditor/files/sudok.pdfIn PDF document text
    • https://zaloposigino.weebly.com/uploads/1/3/0/7/130739621/jabinakowijum_gifolodezo.pdfIn PDF document text
    • https://cdmsig2.com/ckfinder/userfiles/files/82636888423.pdfIn PDF document text
    • http://hanker.ru/web/img/files/15728955013.pdfIn PDF document text
    • http://tuanayapim.com/rsm/files/kitoge.pdfIn PDF document text
    • https://entabe.jp/upload/20220404/files/xubejeviwuji.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_off0000b5dc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b5dc.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5DC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cdf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF3 11076 bytes
SHA-256: 5e3631c314f5148e7dca0cc75fec380bfa83480e12c2406a92f3299455e04568
font_02_sfnt_off0000e7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B4 16564 bytes
SHA-256: 24d1067526c1b8406ea26256908eb24cfbd34dc8c2ee2c38d7e34177ce3dd0f7