Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbeffa43d7b48cf2…

MALICIOUS

PDF

487.6 KB Created: 2022-05-21 01:27:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-23
MD5: 10321719ef67b2de3c14e5fb5855eb8f SHA-1: bb1aef7789fb0b22ca0cd7b778e100829c50dc01 SHA-256: cbeffa43d7b48cf263601bc70436e32747f1a037f09da4cbcb6852bfd2ac69d1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5016

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://immodraft.nrw/images/architekten_agentur_images_/file/95583600181.pdf In PDF document text
    • https://www.madrasclub.org/admin/attatchment/upload/files/xudaxo.pdfIn PDF document text
    • http://gira-classix.su/kcfinder/upload/files/59043370023.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/nibmok4gfjoqffmid4uhe2csp9qatngl/dasojobarasipufex.pdfIn PDF document text
    • https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/xuzobazofagav.pdfIn PDF document text
    • https://tusujowifavenag.weebly.com/uploads/1/3/1/4/131453847/03d3f33f42.pdfIn PDF document text
    • https://numevajuga.weebly.com/uploads/1/3/0/9/130969633/9800107.pdfIn PDF document text
    • http://rem-proekt.com/f/file/debedas.pdfIn PDF document text
    • https://ph2020.org/FCKeditor/file/95826549295.pdfIn PDF document text
    • https://kixoburixin.weebly.com/uploads/1/4/1/5/141560673/teratat_gitarimol_mibedogugerapi_jujexifolinofod.pdfIn PDF document text
    • https://xemoridimeki.weebly.com/uploads/1/4/1/4/141498399/246ac1e9444c3.pdfIn PDF document text
    • https://fabriziochessa.it/userfiles/file/3343729204.pdfIn PDF document text
    • https://alistairmills.com/ckfinder/userfiles/files/wuxopupibo.pdfIn PDF document text
    • https://skykharchono.mn/editor/files/lelarije.pdfIn PDF document text
    • https://degapepe.weebly.com/uploads/1/3/1/8/131856160/34091.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/22hhbl903mjdnl0aefgevpts48/lanotezix.pdfIn PDF document text
    • https://bisnismedsos.com/userfiles/file/83275358516.pdfIn PDF document text
    • https://meninexe.weebly.com/uploads/1/4/1/2/141279092/0a2cd29872.pdfIn PDF document text
    • https://gefaturulabi.weebly.com/uploads/1/3/4/4/134487578/xasoxarel-pegomelo-xamid-vafobe.pdfIn PDF document text
    • http://tramcathy.net/data/files/64271203598.pdfIn PDF document text
    • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/12574424185.pdfIn PDF document text
    • http://cngwalk.com/fckeditor/userfiles/image/kikidegor.pdfIn PDF document text
    • https://zetitazafoxiz.weebly.com/uploads/1/3/4/0/134040412/4372868.pdfIn PDF document text
    • http://laeuferdatenbank.wkel.de/UserFiles/File/favak.pdfIn PDF document text
    • http://kk-gorenjska.si/uporabnik/file/46106666937.pdfIn PDF document text
    • https://fekujize.weebly.com/uploads/1/3/4/8/134869517/sixarojiz-xivisesogagama.pdfIn PDF document text
    • http://bilmatbasim.com/userfiles/file/79412936668.pdfIn PDF document text
    • http://elcondeingles.net/imgs/images/files/59880060983.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1623dac8b8edb5---laxigof.pdfIn PDF document text
    • http://kuppersbusch.hu/userfiles/files/ludava.pdfIn PDF document text
    • http://vzwsportenmuziek.com/content_docs/56009457513.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/fewagipuxokajobuwaf.pdfIn PDF document text
    • https://databaze-zdarma.cz/userfiles/files/tizawotapi.pdfIn PDF document text
    • https://wulakajif.weebly.com/uploads/1/3/2/7/132740593/mabagesixaziva-dujojixilojenoz-notizigowobi.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=canon+piano+sheet+music+easy+pdf+printable+full+text+fullPDF link annotation
    • http://okinawa-touch.com/app/webroot/js/kcfinder/upload/files/43611819072.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_off00072bec.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00072bec.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00072bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BEC 18880 bytes
SHA-256: 4d11a623bf947dc78aefc72472f8ce82f358e1ea3cdd4eb35716fe2a92d75e28
font_01_sfnt_off00075b82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B82 11372 bytes
SHA-256: 977c32be17f567ecc158a1b56df536c1bae9392382e6630a64557fb117499949
font_02_sfnt_off000775eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775EB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1