Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb32792757f7b69a…

MALICIOUS

PDF

45.3 KB Created: 2021-09-16 05:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: c3b559bda190abdf6d655f2f98f0657d SHA-1: 83f55f610da08fdac37f7dcbb02431a3d2a066cd SHA-256: cb32792757f7b69a030a44c565fd345955a6159df937f314e99ab93a1185d514
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, but the structure suggests a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5852

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 https://fnb-concepts.com/images/uploads/files/rovilurewafudo.pdf In PDF document text
    • http://vivaibonomo.it/userfiles/files/52626127581.pdfIn PDF document text
    • https://transturist.ba/ckeditor/ckfinder/files/files/melomometiru.pdfIn PDF document text
    • https://whitesal.com/data/images/file/1624_20210907073152.pdfIn PDF document text
    • http://damosushipleasanthill.com/uploads/files/mozefi.pdfIn PDF document text
    • http://iehyun.com/editorupload/file/zafuvoxisixipibezatagu.pdfIn PDF document text
    • https://epiphanych.com/images/file/80116724490.pdfIn PDF document text
    • http://mibenjamin.com/userfiles/file/89321965097.pdfIn PDF document text
    • http://cornaredo.gattinonimondodivacanze.it/themes/userfiles/files/52944563256.pdfIn PDF document text
    • http://abwplazaview.com/uploads/files/48843071041.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/ab34c82e1e6c0616ddbe286c97659dcb/32681844888.pdfIn PDF document text
    • http://hurtglass.pl/upload/file/fetin.pdfIn PDF document text
    • http://homespakistan.net/magzine/uploadfiles/file/talezox.pdfIn PDF document text
    • https://www.hkfew.org.hk/ckfinder/userfiles/files/xesuse.pdfIn PDF document text
    • http://theemasternetworker.com/ckfinder/userfiles/files/pigetonafalugezepuviga.pdfIn PDF document text
    • https://deltarealestate-eg.com/userfiles/file/2193304162.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/ro1kb5uh0mnv11npq830fc9sfq/vafirozikujewubupiwefenag.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/e8611baec5322ee2c302f5de6c614377/pedijuwevejimuxuxuxejili.pdfIn PDF document text
    • https://coonvalleycc.com/userfiles/file/kitidinimekivozekad.pdfIn PDF document text
    • http://nagyberki.hu/sites/default/files/fck_uploads/file/87060437379.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/4ed5b4cf849900a39cddf26435c6fd84/60878469304.pdfIn PDF document text
    • http://vititanon.com/user_img/files/mupuxokawofejeximak.pdfIn PDF document text
    • https://ndmoyun.com/calisma2/files/uploads/25528141641.pdfIn PDF document text
    • https://prettygreekvillas.com/admin/fckeditor/editor/filemanager/connectofile/dibasowitedodojofub.pdfIn PDF document text
    • http://cwesp.biz/upload/file/pinizesesakekodivenajow.pdfIn PDF document text
    • http://agavietnam.com/img/files/69679011809.pdfIn PDF document text
    • http://box8websites.com/ckfinder/userfiles/files/62282464976.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=bedroom+eyes+full+movie+online+123PDF link annotation