Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f221a203cd847cb…

MALICIOUS

PDF

79.0 KB Created: 2021-07-02 04:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 2484d42a97923161e61bd3d696c0d6c5 SHA-1: abfa5ce792cdbf5678690be1b1cf2eb2d1148da8 SHA-256: 8f221a203cd847cbbb24cbed55c577b10ef7f9439e72beab19ed9e0c1e4effd9
154 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to websites hosted on compromised CMS uploads and disposable domains, indicating a link farm designed to distribute malicious content or phish users. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5366

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://crisismobile.com/ckfinder/userfiles/files/64548986991.pdf In PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/187t85mp12e5e1hqgasceosqp4/98395325342.pdfIn PDF document text
    • http://sy-smile.com/upload/files/42551822545.pdfIn PDF document text
    • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/de2749dc2fe718edd0ded461dca5605d/34671189369.pdfIn PDF document text
    • https://xistenze.com/files/files/kupulupirab.pdfIn PDF document text
    • http://enotecagaribaldi.it/userfiles/files/bejigizamowelini.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/80010839670.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e5fdc1a95---bowaxojar.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1609793b88eb95---75076765834.pdfIn PDF document text
    • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160add8e2199ba---50678418533.pdfIn PDF document text
    • http://murphysbeads.com/clients/54316/File/43234508496.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/7905cf6a3672ee7283de5efecbecdd70/60000766959.pdfIn PDF document text
    • http://ahdongjiu.com/upload_fck/file/2021-5-11/20210511035534484631.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080701dd70c9---wivefadadi.pdfIn PDF document text
    • http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607855447ba68---12866090336.pdfIn PDF document text
    • http://albatrossmrn.com/konadnew/userfiles/file/21546952452.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/frbl931f7u9bms54rhdonvs2tm/62352687678.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c19a24e07d0---25351925830.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/7p8kguif75e4sk5fjhsqo3u3p2/34400347158.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607390a220691---89495683644.pdfIn PDF document text
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/f3a0661dab6fc9dcf029dd3694f4dd54/31550533018.pdfIn PDF document text
    • https://vieclamxaydung24h.com/upload/files/wotozokafekigareseteteko.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eff0798e02---fivixuwobixotukuduf.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/ku8949cbksnl58l3hsm9cpl1ub/vorimidalodelorobavugi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=best+app+for+annotating+pdfs+windowsPDF link annotation

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