Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7354de8ef01934…

MALICIOUS

PDF

62.3 KB Created: 2021-09-02 04:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 1cd38811a10a613df32fd832c0872ede SHA-1: d4bfcd9ca3901351039d326f0f0772bc6d6f9c6a SHA-256: 6a7354de8ef01934789ec0d5bc42da6f3339943fac531a8b2de1b1a4a7ddaaef
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple domains, several of which appear to be compromised CMS uploads. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8900

Heuristics 5

  • 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 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.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://planbmedia.hu/files/woxejaxal.pdf In PDF document text
    • https://agrando.cz/files/file/kawusenajerawitovojo.pdfIn PDF document text
    • http://jubileejec.com/userfiles/files/99900980908.pdfIn PDF document text
    • https://parfumzone.ro/files/file/pugola.pdfIn PDF document text
    • https://assistenza-termica.it/file/69009883380.pdfIn PDF document text
    • http://sea-cruise.ru/ckfinder/userfiles/files/25386762729.pdfIn PDF document text
    • http://cnpair.com/userfiles/file/12591246149.pdfIn PDF document text
    • https://flcevent.fcu.edu.tw/plugin/ce1/ckfinder/userfiles/files/20210803205924.pdfIn PDF document text
    • http://tonioloclaudio.it/userfiles/files/ferenukufin.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160e512cb738e3---xidixajixikito.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16077bf244daa3---xovowojuvujowevunujazele.pdfIn PDF document text
    • http://unseenadventure.com/userfiles/file/ruraloma.pdfIn PDF document text
    • http://mopi.eu/ckfinder/userfiles/files/demixufosezarojobidiluw.pdfIn PDF document text
    • http://kythuatviet.vn/uploads/userfiles/file/mepaxagilaxejabopafoxi.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d2185f7bf---nediwivoberol.pdfIn PDF document text
    • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/77f65b71b385ac16c62c9ab8bce83e6f/59654210718.pdfIn PDF document text
    • https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/40ckeiiq7to488aqadmhs5d5j7/tarukuv.pdfIn PDF document text
    • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/c8ddeb4120ab74df2166543ac5a3deab/11292732962.pdfIn PDF document text
    • http://4els.ru/uploads/images/files/tizaj.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc0ce79234---kipet.pdfIn PDF document text
    • http://bipaf.org/2009_home/upload/editor/file/jovikapulezuzerekewepe.pdfIn PDF document text
    • http://bettynblue.com/upload/fck_img/20210514/file/fefejasimamaxul.pdfIn PDF document text
    • https://jobtiara.com/files/files/zolatopuzuromeweju.pdfIn PDF document text
    • http://frickcontrols.com/uploads/files/nivuzekakixubedunuwixokuw.pdfIn PDF document text
    • http://autosklo.sk/pictures/file/rulage.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=man+of+steel+and+velvet+pdf+free+downloadPDF link annotation

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