Malicious PDF — malware analysis report

Static analysis result for SHA-256 d93589a6c49c59ad…

MALICIOUS

PDF

74.9 KB Created: 2021-07-25 00:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 8a14b07bf9806f7020ea092f14d0a677 SHA-1: 5aa9d4543cb7813f2991c7cdae4263d88677c322 SHA-256: d93589a6c49c59ad618f5ad8332c7c61e3807ff80e4e839ea953131a8c67d215
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress upload directories and other disposable hosting, suggesting it is used to distribute further malware. The embedded URLs and the nature of the heuristics suggest a phishing or social engineering lure, likely attempting to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9839

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://22vek-omsk.ru/fck_editor_files/files/57742675418.pdf In PDF document text
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/2c4621a0ee974a3c302e86f6ad4c5951/63562666978.pdfIn PDF document text
    • https://alutat.com/data/file/60073011447.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/nubiwofawagojuruzem.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bq3imr3tbl7he1o22esj6c7jm0/xuwowetagavode.pdfIn PDF document text
    • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/ec2a4beebba3999df63e4d4825bd3b4b/dofeg.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b39a0d5c6---37321710254.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/eb60co8stod1kldcdpuojvv3sd/7450971584.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc1b3186b66---32982282280.pdfIn PDF document text
    • https://alarrabnews.com/images/content/content/file/wudufukegotiz.pdfIn PDF document text
    • http://bachova-terapia.sk/images/file/53304468807.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/962b7ebff6e35bd15bda658921256074/27338517526.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/9c182a8bf40b7f90220dd3f8e74ced1f/zafoxasenamagurerukazoveb.pdfIn PDF document text
    • https://bosgo.mn/uploads/files/87450551154.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec5824c613---wurafulonekozafanurira.pdfIn PDF document text
    • http://stewartreunion2020.com/clients/2/2a/2a0d9dcdd57715375c9f4393c24df0f2/File/95246707984.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16083e1a48961a---tubazulojopi.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16080fdb90e562---munofadidojovilupazowovo.pdfIn PDF document text
    • http://ghalemdi.com/userfiles/file/39435065344.pdfIn PDF document text
    • https://bomberosdenavarra.com/userfiles_nexo/files/94773407288.pdfIn PDF document text
    • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/160854461065db---2198996740.pdfIn PDF document text
    • http://csc-020.com/userfiles/file/20210703142118_jeg4sh.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/63622279467.pdfIn PDF document text
    • http://condosworld.com/abisol1/userfiles/files/berajolekedalopifakedereb.pdfIn PDF document text
    • https://biomedchita.ru/imeg_master/file/57327292026.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=angularjs+tutorial+pdf+for+beginners+free+downloadPDF link annotation

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