Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfe1ae6f1c3e20bb…

MALICIOUS

PDF

45.8 KB Created: 2021-07-10 10:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: f83b82bc0ca7c6f333097c08b332c86c SHA-1: 63fc88669a7b2fb2780b451ba23a6cf9670b7218 SHA-256: dfe1ae6f1c3e20bb84ff7ebc40a186e2a59068de584bb3d3725f64ea803b3865
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, directing users to multiple compromised WordPress upload directories and other potentially malicious sites. The presence of numerous links on disposable hosting and the use of UTM parameters suggest an attempt to obscure the true destination and potentially engage in phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5569

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://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160afc8372a44a---mexazakezezuvas.pdf In PDF document text
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160788455d485c---880684248.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607eebad944a9---jejigavobatobivowixiremi.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/ihmqu9gi11u98gdirbglnpq2ep/87973706869.pdfIn PDF document text
    • https://tort-art.ru/userfiles/file/76652379561.pdfIn PDF document text
    • https://weeb.nu/userfiles/file/wizazo.pdfIn PDF document text
    • http://mitsubishilongbien.vn/images/ckeditor/files/lilijenesojotenipafo.pdfIn PDF document text
    • https://angkorphotographyguide.com/userfiles/file/patopason.pdfIn PDF document text
    • http://backupcenters.com/userfiles/file/30841842681.pdfIn PDF document text
    • https://www.groupenahno.com/wp-content/plugins/super-forms/uploads/php/files/edtgvk8issgks9m2450kcjk3ic/werufofitulefot.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/msbae5elmuh2bq54593pk1fc26/gigobagazojob.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/9e6c3a2714042d47e742b87864e00683/bilimijekefulemuwapuwiwo.pdfIn PDF document text
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ae02b3017f2---22634712182.pdfIn PDF document text
    • http://guojingmall.com/userfiles/file///97212332196.pdfIn PDF document text
    • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/2e97dda401af40d59f80f5ddbdac1985/50602825199.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/57483bfd8c09ba82c71d21e3811283d9/padesoboxir.pdfIn PDF document text
    • http://scoutpate.com/userfiles/file/rurudasidemitosenofoze.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/bssjagq1ds8q5cmj3gfpi4p055/65085177787.pdfIn PDF document text
    • http://lorofilmes.com/Uploads/ckfinder/userfiles/files/11575884192.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bc36923656e---xofojo.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/ririjitidi.pdfIn PDF document text
    • https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/ju7eopbq6sm80m46f9vlc8qnv6/25778373303.pdfIn PDF document text
    • https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/160772b002419a---wegajusogogudeg.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160705c2de7cea---diwexepatasetilifudunibo.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/wukonam.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/4shrn3nt823r1g6l7a5jb4dc6q/3214197834.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=percy+jackson+sea+of+monsters+mp4PDF link annotation

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