Malicious PDF — malware analysis report

Static analysis result for SHA-256 191ccc48aeec1082…

MALICIOUS

PDF

411.6 KB Created: 2022-02-01 09:51:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: cd5ee3cf979665e6d37751327cc65ef3 SHA-1: 40b8e703dabeab28f8d9bc725709dd19db89f550 SHA-256: 191ccc48aeec1082dd9f54b6a837fb0f91c106c0217fa3dfb7b7286a0f053fc3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7848

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
  • 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.
  • 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/XSRYdR1H?utm_term=aha+dyslipidemia+guidelines+2018+pdf PDF link annotation
    • http://medlabtests.com/kcfinder/upload/files/zumonilololisunonisori.pdfIn PDF document text
    • https://mayphotocopydogia.com/upload/files/tosifag.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618a2bcde6e5e---26842446390.pdfIn PDF document text
    • http://shrlie.com/upload_fck/file/2021-10-18/20211018201034997096.pdfIn PDF document text
    • http://coyada.com/up_images/up_images/wasopofelupatesido.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/29865613254.pdfIn PDF document text
    • https://emmaushuis.org/pages/33469419951.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/22610064706.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/mm1su5t056hlfjh1v3sfqbgu7h/36542711997.pdfIn PDF document text
    • https://vwb.mrv-educationservices.com/content_file/files/kitejojolixuminitotamut.pdfIn PDF document text
    • https://alquimia.in/admin/fckeditor/editorfile/diginexogunoxabosowe.pdfIn PDF document text
    • https://isystem.hu/userfiles/file/dugaruzidagusevimufidop.pdfIn PDF document text
    • https://zemiigori.com/uploads/file/beginisizokuk.pdfIn PDF document text
    • https://svezadjecu.me/userfiles/file/zibitetatunot.pdfIn PDF document text
    • http://yule-sign.com/upload/editor/file/20220103165323.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f26acd3a656---72721509723.pdfIn PDF document text
    • https://ski-valloire.com/ckfinder/userfiles/files/ruseweso.pdfIn PDF document text
    • https://www.bilasiparacollege.org/assets/kcfinder/upload/files/xixujevopudujunapi.pdfIn PDF document text
    • https://piataafacerilor.ro/app/webroot/files/userfiles/files/zamagefewaviguvuwip.pdfIn PDF document text
    • https://arerp.kr/data/file///vebabawivof.pdfIn PDF document text
    • https://kezmosas.hu/files/file/gujevipokebeguso.pdfIn PDF document text
    • http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/pederojawuxikemudobigisuf.pdfIn PDF document text
    • http://cdseoulps.com/uploadfile/fckeditor/file/golazapapapozemebozo.pdfIn PDF document text
    • http://getsolarnj.com/userfiles/file/pomekojeziwib.pdfIn PDF document text
    • http://abpjseah.news-read.com/upload/files/biluka.pdfIn PDF document text
    • https://nhatngudongkinh.phapluatvietnam.com/upload/ckupload/files/zutup.pdfIn PDF document text
    • http://mcutech.net/files/67821679065.pdfIn PDF document text
    • https://kohaz.hu/files/file/zizivubunitidulifawavila.pdfIn PDF document text
    • https://www.unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/60040030425.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 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_off00060154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60154 17212 bytes
SHA-256: 0be6f12c3d3c75da9f93ad53e154f870e5eb8839eaef7ae3630628a058dcc0c1
font_01_sfnt_off00062e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E5C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00064500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64500 11324 bytes
SHA-256: 734a8dfe3ef6e27ffb5b476d1d18262ff87a87934bcc28c1725bbfe21eb22a2a