Malicious PDF — malware analysis report

Static analysis result for SHA-256 6104b5db570f178d…

MALICIOUS

PDF

76.2 KB Created: 2021-09-21 16:01:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 2b71b0708d6905e291ff155127d0ad0e SHA-1: 6f75c5d51b57e77d7c2058417caca5ae9dcecd0f SHA-256: 6104b5db570f178daa52253aa59608b433278d0e559d6d89efb1d5e4a230375c
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of external links, many of which point to potentially compromised or disposable hosting sites. These links likely serve as a link farm to redirect users to phishing or malware-hosting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7770

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
  • 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.
  • 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
  • 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://clubon.top/uploads/files/lakeme.pdf In PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161353fc8d5a25---bakulosub.pdfIn PDF document text
    • http://deleersnijder-bocaege.be/images/file/63092526364.pdfIn PDF document text
    • http://jfhcoaching.com/userfiles/files/49129347058.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613ecc2cc77ed---85310465667.pdfIn PDF document text
    • http://atoutslegion.com/userfiles/file/9718894644.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/ghf1kh94jp0gbu6g5lfomg2hu3/55742764768.pdfIn PDF document text
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/4a49e68d5db6cc11dc415680024e0d51/pupatozoromapajisemuluba.pdfIn PDF document text
    • https://abisspaandboutique.com/nbloom/fckuploads/file/zogojuvemowesul.pdfIn PDF document text
    • https://allianztc.ro/files/file/tazojezital.pdfIn PDF document text
    • http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/timetibejatijizop.pdfIn PDF document text
    • https://discovercefalu.com/_data/images/file/wopaninisomusawiloderexup.pdfIn PDF document text
    • http://allivecoat.com/userData/board/file/7792514079.pdfIn PDF document text
    • http://villkasz.hu/editor_up/fozubonefipevaruxivo.pdfIn PDF document text
    • http://avision-italia.com/userfiles/files/83326311806.pdfIn PDF document text
    • https://marsanz.pl/uploads/fck/file/20283056209.pdfIn PDF document text
    • https://stpatswatertown.org/ckfinder/userfiles/files/losusuragawanuvex.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/jinipakovapiwejen.pdfIn PDF document text
    • http://ver9ctrl.sonikgps.com/ckfinder/userfiles/files/fawotogemugoxagirox.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/079lhvbn80m4ue6f6e6dribqem/zaxisiw.pdfIn PDF document text
    • https://euroroma-bg.org/files/file/35210144846.pdfIn PDF document text
    • http://22vek-omsk.ru/fck_editor_files/files/xiwevidodemurizid.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=android+how+to+cast+screenPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.