Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fa71bb41793de3…

MALICIOUS

PDF

69.6 KB Created: 2021-09-29 10:43:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: f079367bfb245ea243734a452e7e49dd SHA-1: fe43283e1073b5feebdb4eed4d29844ae50d315a SHA-256: 98fa71bb41793de31f7f46d7c66b7f9459020405c95496fa9b6a9f79cf414d15
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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://bepxuyenviet.com/upload/files/pasugewadukezipu.pdf In PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1615154baf0106---59843543195.pdfIn PDF document text
    • http://antwerp-reefer-tournament.be/argt/files/873183206.pdfIn PDF document text
    • https://roarmysecurity.ro/mm/file/57127826169.pdfIn PDF document text
    • http://decamiones.com/userfiles/file/98342275598.pdfIn PDF document text
    • https://sbsoftware.ro/admin/userfiles/file/37954459025.pdfIn PDF document text
    • https://yellowmangocafe.com/userfiles/file/fuputigaku.pdfIn PDF document text
    • http://ndt-ultratech.com/files/givegewiwal.pdfIn PDF document text
    • https://dangeloremodeling.com/nbloom/fckuploads/file/27855255640.pdfIn PDF document text
    • http://alatasfilms.gr/ILC/img/file/8513389420.pdfIn PDF document text
    • http://astmasme.com/userData/board/file/30335667518.pdfIn PDF document text
    • http://anhuizpyy.com/upload_fck/file/2021-9-5/20210905044939615542.pdfIn PDF document text
    • https://h1t-url12shio-turbo.com/contents/files/libebim.pdfIn PDF document text
    • https://accidentmatters.com/ckfinder/userfiles/files/guwaxerumerakiwo.pdfIn PDF document text
    • https://ikuseikyokai.jp/ckmedia/files/33198426611.pdfIn PDF document text
    • http://mrs-edu.com/sribati/editor/uploadfiles/fubenigarenopate.pdfIn PDF document text
    • http://daearesort.com/FileData/ckfinder/files/20210925_2CB16EEA62C53608.pdfIn PDF document text
    • https://libertyrealestate.in/ckfinder/userfiles/files/vevokefaf.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/40963344339.pdfIn PDF document text
    • http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/57000949747.pdfIn PDF document text
    • http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/texubir.pdfIn PDF document text
    • https://trungtammatnamviet.vn/upload/files/xegixivosanisosepo.pdfIn PDF document text
    • http://sungwoo-n.com/userfiles/file/24251757390.pdfIn PDF document text
    • http://balone.net/_upload/file///29380859348.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=contact+and+message+backup+android+appPDF link annotation
    • 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_off0000aed5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000aed5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAED5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c6ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EC 11172 bytes
SHA-256: 5dc514a08b4c2738e61a3dddb5c89d198dc049df5ad5f71436167a53e5495a22
font_02_sfnt_off0000e0aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AA 15076 bytes
SHA-256: eaf49b7c0d609ed29f92f979d80d31d2589058de473423693ed2b57edacd256b