Malicious PDF — malware analysis report

Static analysis result for SHA-256 7266a4ae938fa23b…

MALICIOUS

PDF

307.4 KB Created: 2022-03-03 14:52:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-12
MD5: 1d085ca16af341db3a79dcac8146f9d6 SHA-1: 4f4848818dac9f328f427acad473a152efd3942f SHA-256: 7266a4ae938fa23b0c4ca4ac5373a274e9790661cfa81fe9b7eae710fa538449
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7195

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=chiltern+railways+app PDF link annotation
    • http://cdkuysuujk.handysociality.com/upload/files/4536617804.pdfIn PDF document text
    • https://ms2gacor.com/contents/files/88858737561.pdfIn PDF document text
    • http://wyadonline.com/userfiles/file/59625739587.pdfIn PDF document text
    • http://studioboscono.it/userfiles/files/xufixirepozidifikeb.pdfIn PDF document text
    • https://www.lipca.com/ckfinder/userfiles/files/wosop.pdfIn PDF document text
    • https://megat.pl/uploaded/fck_files/file/38045146622.pdfIn PDF document text
    • https://reflectionsseries.gilmorgenstern.com/userfiles/File/72313866792.pdfIn PDF document text
    • https://centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/59164071339.pdfIn PDF document text
    • http://debeight.net/UserFiles/File/mopisos.pdfIn PDF document text
    • http://walnutcreekguide.com/wysiwygfiles/file/mujudetojoluzu.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16200e70f079fd---nezoviwoxujolivate.pdfIn PDF document text
    • http://artc-polymers.com/upload/images/files/34420545047.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/dopabanubuwilevuwatanunig.pdfIn PDF document text
    • https://graveyards-fuj.ae/userfiles/files/68319591759.pdfIn PDF document text
    • http://klimafertotlenites.hu/kcfinder/upload/files/vixamobetegeb.pdfIn PDF document text
    • http://marasintl.com/public/ckfinderuploads/files/51553452429.pdfIn PDF document text
    • https://pre-www.bridge-academy.com/uploaded/ckeditor/files/titusibosakezibef.pdfIn PDF document text
    • http://dfwsedan.com/nbloom/fckuploads/file/12625520180.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbf000df930---vinavaruferijo.pdfIn PDF document text
    • https://www.maniocenter.com/imagenes/editor/file/5180679480.pdfIn PDF document text
    • http://sz-frp.com/pic/20220227140720101.pdfIn PDF document text
    • https://ratosatu.com/contents/files/81665952246.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1621e1784c1b22---gekepen.pdfIn PDF document text
    • http://retailcop.ca/files/notadosetizarilibenoxis.pdfIn PDF document text
    • http://mmkotomasyon.net/userfiles/file/83535674479.pdfIn PDF document text
    • https://pmeds.us/userfiles/file/92465593171.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/c05ebee1c176570a4674f726828f7406/68216655475.pdfIn PDF document text
    • http://www.salda.se/saldus/kcfinder/upload/files/40764774499.pdfIn PDF document text
    • http://propertiesforrent.com/userfiles/file///rinugevumowubomob.pdfIn PDF document text
    • http://nrtz.fundacja-spektra.pl/upload/files/21164806828.pdfIn PDF document text
    • https://www.cistarekaupa.cz/kcfinder/upload/files/siwirujusenuvululus.pdfIn PDF document text
    • https://www.misuhuko.com/assets/kcfinder/upload/files/nelaxopodegulelilawitig.pdfIn PDF document text
    • http://polskienarty.pl/data/aktualnosci_imgs/file/8317910423.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161f9e64ecd863---movojukexuzepenavejabero.pdfIn PDF document text
    • https://ewastexperts.com/userfiles/files/mazefibapes.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_off000459d1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000459d1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000459d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x459D1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000470ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470EC 19792 bytes
SHA-256: db3482ac7c648662bdde992c541ed97ef271bebe4173ea4f659045f9cbb35ee2
font_02_sfnt_off0004a4c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4C6 10460 bytes
SHA-256: b9fd3dcce09037c14ecb8269107aa750933b8c296cc1540fa15819bb7676677b