Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b47a972e1978171…

MALICIOUS

PDF

77.5 KB Created: 2021-08-12 02:53:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 5ed064fade5beec4033a64266cec075c SHA-1: deacc82b378fdf5100d7c597ec6ebd36cf9036b8 SHA-256: 2b47a972e1978171d025dca9730b073d26837c7eecb19c815324867571f70f21
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links, many of which point to compromised websites or disposable domains, suggesting 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 from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6922

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nomylo.ru/uplcv?utm_term=what+is+to+boast+something PDF link annotation
    • http://hotelamadeustorino.com/userfiles/files/89409624904.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071b1d177bc3---29185951197.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9482d47756f1a8cb068009c6a73f52ab/43776023281.pdfIn PDF document text
    • https://pakianco.ir/data/image/uploads/news/files/sonuzejebixi.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160b4eb1ea502d---kitetenunotofotejam.pdfIn PDF document text
    • https://kitapkaplama.com/upload/ckfinder/files/83911186824.pdfIn PDF document text
    • http://ramenzoni.eu/userfiles/files/86621380357.pdfIn PDF document text
    • http://podlahyadvere.sk/editor_uploads/system/files/30005903044.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/89ajdt0q6eh83bseck0uie3q7i/lelazotovizilezeleli.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16111058d790a3---96037250806.pdfIn PDF document text
    • http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vekitomeketoluweton.pdfIn PDF document text
    • https://www.dogandemir.av.tr/paketler/ckfinder/dosyalar/files/65672939871.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/58130601469.pdfIn PDF document text
    • https://serviceservice.eu/userfiles/file/4714888904.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/d58165cb8df4cee44d059727902b2d95/gigaxuliji.pdfIn PDF document text
    • http://cpils.com/userfiles/file/roranexebimetegademafag.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb0d5513c72---87530582593.pdfIn PDF document text
    • http://grodgolf.com/clients/f/fd/fd83fa7079552abb47853a85229f74c1/File/goguzogilitebakuzonarupow.pdfIn PDF document text
    • http://fontanarosaserigrafia.it/userfiles/file/muneruzerove.pdfIn PDF document text
    • http://backkwang.com/userData/board/file/99038538870.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecd8811304---18307029385.pdfIn PDF document text
    • http://planao.com/ckfinder/userfiles/files/90174312153.pdfIn PDF document text
    • http://afro-safari.com/upload/files/8352440072.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/f89aedc0fa9b213eed7b9adad0103418/2311312713.pdfIn PDF document text

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