Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f41b53bfb15b29…

MALICIOUS

PDF

72.5 KB Created: 2022-03-31 18:38:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 4cbc95b1d9852cf5dd525d267041eada SHA-1: 26611f19907a570c121bd7e4e9dca37e85d336de SHA-256: 98f41b53bfb15b29839592c37944cd540e16a14e37922c4ef25e5e26dcbae9d1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://norin.co.za/YmrXLWy8?keyword=how%20much%20do%20driving%20examiner%20earn PDF link annotation
    • https://quatden.vn/webroot/img/files/lowijinadegusi.pdfIn PDF document text
    • https://explonorte.com/admin/files/files/rekojepovafonegiwilawarix.pdfIn PDF document text
    • https://wukuvapover.weebly.com/uploads/1/3/4/8/134878379/1733225.pdfIn PDF document text
    • http://bizzarro.be/admin/kcfinder/upload/files/nunajodewatipulofim.pdfIn PDF document text
    • https://sudarixadozitot.weebly.com/uploads/1/3/5/3/135331315/vexetevabozil.pdfIn PDF document text
    • https://zuvurakos.weebly.com/uploads/1/3/4/0/134042350/nodujef-vasotidisufawag-veworabes-giwijoxexebubi.pdfIn PDF document text
    • http://yishiweb.com/upfiles/files/20220320_134857.pdfIn PDF document text
    • http://toyosupport.ca/assets/kcfinder/upload/files/bejixezixixo.pdfIn PDF document text
    • https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/f697cfc4e92157f8992d8e31fd980485/68084955186.pdfIn PDF document text
    • https://xafijaxipumin.weebly.com/uploads/1/3/5/9/135966545/vekogugaveduguvisu.pdfIn PDF document text
    • http://celox-st.hr/sites/default/files/fck/file/99647500414.pdfIn PDF document text
    • http://clingac.com/d/files/lixifivafaselufadijo.pdfIn PDF document text
    • https://xiwulugizasu.weebly.com/uploads/1/3/2/7/132741433/dofubijupe-wimivirowak-jelajovu.pdfIn PDF document text
    • https://datajournonepal.org/files/xuzoxere.pdfIn PDF document text
    • https://lerogufoporix.weebly.com/uploads/1/3/4/8/134885840/398731.pdfIn PDF document text
    • https://venolebibu.weebly.com/uploads/1/3/5/3/135348563/2850105.pdfIn PDF document text
    • https://wivaxuzavegisi.weebly.com/uploads/1/3/4/7/134769578/dowepirijevomadikuw.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/5f3c686bb8852ed1e90aa7728d327765/dezolusal.pdfIn PDF document text
    • http://jerry-cheese.com/kcfinder/upload/files/45446913338.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_off0000b7ab.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b7ab.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7AB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBD 17088 bytes
SHA-256: 441dee00128c2970006603f5388d983596eb73e5b51b84d885fb09cd21bc5f9a
font_02_sfnt_off0000fc51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC51 10852 bytes
SHA-256: ee0c04eefca0ab5b347384b827c952c1727fec9242c8066f1daa4df3b117e85c