Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae95cd91ad54d84…

MALICIOUS

PDF

90.1 KB Created: 2021-09-07 06:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 282128499bbcdc3bb86c4a331545e9b9 SHA-1: 6c135819fd0ddf8aa689e98ac2d05a0080aee98a SHA-256: 2ae95cd91ad54d8411c8719cd607d0d44cc7e9e6b6689e7ac011dd2cc9175355
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV, specifically as a phishing trojan. It contains embedded JavaScript and a link farm pointing to compromised WordPress uploads and other disposable hosting, suggesting it's designed to redirect users to malicious sites. The presence of embedded JavaScript indicates an attempt to execute code, likely to facilitate further malicious activity.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3743

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://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f33f39b44---xodanunogononutuzigugumi.pdf In PDF document text
    • http://yongqingtech.com/d/files/sutevoreligifomo.pdfIn PDF document text
    • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/32c438919ebf2d7ffa0b489e9fb2c4ce/28136094780.pdfIn PDF document text
    • http://unesco-mediain.cz/fckfiles/file/mowolemawojuzoj.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098466a70e80---39494712809.pdfIn PDF document text
    • https://coaching-jk-academic.com/ckfinder/userfiles/files/muxonunofik.pdfIn PDF document text
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/o1if3stp3a5qkqn113kg87d17i/58891711346.pdfIn PDF document text
    • http://burchiellati.com./file_fck/file/6100017983.pdfIn PDF document text
    • http://isystemlab.com/admin/ckfinder/userfiles/files/46973282389.pdfIn PDF document text
    • http://rainesclassof1980.com/clients/3/31/314d3ac3c31ee16cfc8f78d457af0ebc/File/futib.pdfIn PDF document text
    • http://tcihk.com/userfiles/rimogukimabeliwibo.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/293fabb8b296c77e49099928d0d52ef4/70100105013.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c9d8109a0bb---dujogitasow.pdfIn PDF document text
    • https://growyourmoney.in/userfiles/files/regawanakugatabaramoba.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16092f3c942b83---67748250780.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/f44l7f12piotbqm6dhvvgafk65/gunepegupena.pdfIn PDF document text
    • http://k-ookuma.com/js/upload/files/fiwowozesarulinunakero.pdfIn PDF document text
    • http://mytrangroup.com/uploads/userfiles/file/98246932945.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/7a57cc705491535c339bdfdc68e48156/78856415349.pdfIn PDF document text
    • https://aartipalette.com/userfiles/file/23363215923.pdfIn PDF document text
    • http://tanphatinst.com/vietkiendo/upload/file/19212375415.pdfIn PDF document text
    • http://zonazero.es/userfiles/file/13367752455.pdfIn PDF document text
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b915da0a659---64137555187.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098687975f20---53879851304.pdfIn PDF document text
    • http://galsabino.it/userfiles/files/22849063146.pdfIn PDF document text
    • http://tkhomedeco.com/assets/uploads/ckedit/files/20210827073347.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=livro+de+receitas+a.c.+camargo+-+cancer+center.pdfPDF link annotation

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