Malicious PDF — malware analysis report

Static analysis result for SHA-256 011a525be4d6ff55…

MALICIOUS

PDF

371.5 KB Created: 2022-03-18 06:52:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-27
MD5: 6fd152b014b7be7f891d064f53f5aa9a SHA-1: 1646a2f568e0e8aea6ad27e02216bd286746a0e4 SHA-256: 011a525be4d6ff5561b56630e51ff2fae1cbe5277786ac4b9cc94e89db3126d3
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5513

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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 https://yoyep.co.za/XSRYdR1H?utm_term=multi-+angle+ruler+template+tool+measures PDF link annotation
    • https://mdteam.se/ckfinder/userfiles/files/65082682752.pdfIn PDF document text
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/rilobitutomoxamu.pdfIn PDF document text
    • http://bckvalumni.org/userfiles/file/givuriparokukixugekak.pdfIn PDF document text
    • https://mn-lawfirm.com/box/userfiles/file/kumolano.pdfIn PDF document text
    • http://xn--45-1lchpa.xn--p1ai/files/files/83075509529.pdfIn PDF document text
    • https://musicalfamilytree.com/files/bejubuwuvim.pdfIn PDF document text
    • https://ilo.tasksplan.com/userfiles/files/67073253441.pdfIn PDF document text
    • http://stroi-sistema.ru/img/bupofejotedomadofuwajemiw.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/88456187450.pdfIn PDF document text
    • http://kleinschadenexpert.de/userfiles/file/38147231515.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/85494303890.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/m0bvr5qp3v4mkmo96uu0v0ctu0/vexitonuxovoluweb.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/2clqj9nbb5pulhc9tu1jbkmtk3/12420678757.pdfIn PDF document text
    • https://vozilasavozacem.rs/files/vazovap.pdfIn PDF document text
    • https://abcoegypt.com/userfiles/files/kosapawibitisi.pdfIn PDF document text
    • http://dywin.com/uploadfile/files/zotozineb.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/68d417f70fd82bd5f9647e72eaa7fbf2/kejiwawu.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/a745ddafaf5be02720c4c7639e7acc4f/69040962508.pdfIn PDF document text
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/6702333867.pdfIn PDF document text
    • http://2safe4u.cz/UserFiles/File/12754000201.pdfIn PDF document text
    • http://h029.hosannakorea.net/sa_upload/userfiles/file/20220227192305.pdfIn PDF document text
    • https://antiquites-opio.com/kcfinder/upload/files/62489795725.pdfIn PDF document text
    • https://moruslondinium.org/img/files/77307434979.pdfIn PDF document text
    • http://isuzuphonoi.com/data/dulieu/files/kejipeputonelu.pdfIn PDF document text
    • http://urbancollab.com/userfiles/Proj_Name/files/67912834366.pdfIn PDF document text
    • https://ww170002.linebot.net/upfile/files/20220302150847.pdfIn PDF document text
    • https://gelblighting.com/userfiles/files/dovisotuzedukanu.pdfIn PDF document text
    • https://pinpointfeedtech.com/ckfinder/userfiles/files/vavojosezulawetesoj.pdfIn PDF document text
    • http://saaretravel.ee/images/file/monatixux.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/66822502714.pdfIn PDF document text
    • https://lalicorne-hotel.com/userfiles/file/24212460664.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/24832150721.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621bcba17a46b---36628684145.pdfIn PDF document text
    • http://www.insight-assessment.com/ckfinder/userfiles/files/95179165524.pdfIn PDF document text
    • http://www.extoskoko.co.jp/js/kcfinder/upload/files/18644588412.pdfIn PDF document text
    • http://www.nbaindia.nic.in/includes/ckeditor/plugins/kcfinder/upload/files/ribinifitegutuzobifa.pdfIn PDF document text
    • http://nikolalepojevic5.com/multimedia/file/56658525249.pdfIn PDF document text
    • http://ngocvietbungalow.com/upload/files/gabizodef.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_off00055da0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00055da0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55DA0 18216 bytes
SHA-256: 2a19a8d59f6494cc848ecaa79c93933b18ccfb34e6aea04e3680aecc4df9c7a8
font_01_sfnt_off00058da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58DA3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005a4c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4C3 10720 bytes
SHA-256: 93bb026741e59608dc0a9e7c680e2f63826b7f8be6ab70d7e75a2d15e1f81aab