Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b39ac554d7e1b6…

MALICIOUS

PDF

71.1 KB Created: 2021-09-26 07:20:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: bf6b607efd747c45cca727516a57d8a1 SHA-1: 7049d0271b10b8219661738cfdce53b7d42d96bb SHA-256: 72b39ac554d7e1b667131f848a0c375e5c9a05c3b25d4f3fd89ca27f7b65cbb3
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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
  • 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.
  • 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 http://denge.aero/upload/files/weluwovamelik.pdf In PDF document text
    • http://mijn-nederland.nl/userfiles/file/wepabifugosopa.pdfIn PDF document text
    • http://hp-cnc.de/uploads/files/fisigep.pdfIn PDF document text
    • https://tonymusic.se/UserFiles/files/simugodovipub.pdfIn PDF document text
    • http://2016.letnifestiwal.pl/ckfinder/userfiles/files/gazekesa.pdfIn PDF document text
    • http://3dprofi.net/images/uploads/file/guvadotegabilotiludomina.pdfIn PDF document text
    • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/71475384356.pdfIn PDF document text
    • http://ourgans.org/userfiles/files/32097658374.pdfIn PDF document text
    • http://31kouqiang.com/userfiles/file/1631899511.pdfIn PDF document text
    • https://maconlux.ovh/userfiles/files/vasesalosefurivuma.pdfIn PDF document text
    • https://etravelbox.com/scgtest/team-explore/uploads/files/nifofejejodemegigiz.pdfIn PDF document text
    • http://www.sana-anong.com/ckeditor/ckfinder/userfiles2/files/religigiwijewinasazipatop.pdfIn PDF document text
    • http://dailitara.lt/bites/uploads/file/1302126557.pdfIn PDF document text
    • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/5081307321.pdfIn PDF document text
    • https://friendsofmultisport.com/ckfinder/userfiles/files/sapodamabowir.pdfIn PDF document text
    • http://12333hy.com/admin/fckeditor_upfiles/file/2021092405123180554.pdfIn PDF document text
    • https://marlin-shop.ru/ckfinder/userfiles/files/fabeze.pdfIn PDF document text
    • http://dxczx.com/ckfinder/userfiles/files/20210909_092908.pdfIn PDF document text
    • http://interiorconsignments.com/media/file/51333906957.pdfIn PDF document text
    • https://brawlcall.jordanadams.com/ckfinder/userfiles/files/pibaj.pdfIn PDF document text
    • https://saglamahsapkutu.com/img/editor/image/file/sunaxunapatasojewek.pdfIn PDF document text
    • http://emilybarnes.com/DEVELOPMENT/VERSIONED/emilybarnes/trunk/sites/default/files/file/80534586283.pdfIn PDF document text
    • http://murielbellhomes.com/userfiles/files/76706643255.pdfIn PDF document text
    • https://www.nvsrolko.org/ckfinder/userfiles/files/3684593995.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=fun+run+3+mod+apk+unlimited+coins+and+gems+2020PDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF7D 16520 bytes
SHA-256: 175302d6629bcfda6d4286c97dd1dd37bf90d4b0427108cb2e62fc6c1bdaa65d
font_01_sfnt_off0000d9db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9DB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f1f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F2 11440 bytes
SHA-256: 3cd486bfb127b1015890b53efd99b4e8f78af243d42567ee27ca014c422d7ac9

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