Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb8a7a9330d92a9…

MALICIOUS

PDF

98.2 KB Created: 2021-08-15 18:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 85e03448a15841f9f64b59dc71f9dd01 SHA-1: ca0931612699bdd5472ac596bc84c7e896cb18a9 SHA-256: 6bb8a7a9330d92a962dce66170fe0f0dc1bd7267135a84443fd3475a9092eab8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file functions as a link farm, directing users to numerous external websites. Several of these links point to compromised WordPress upload storage, indicating a potential phishing or malware distribution scheme. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9424

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.derbysignandgraphics.com/uploads/file/fejudakorubuxavomujukowiw.pdf In PDF document text
    • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16099541f1c014---58686745047.pdfIn PDF document text
    • https://erdenet.mn/userfiles/file/finofedijivijugegek.pdfIn PDF document text
    • http://adance0112.com/upfile/editor/file/lalomubejitaziderusalum.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/c32411d71920153158fbd1ec49847917/posivobami.pdfIn PDF document text
    • https://arbormaster.net/uploads/files/22104897897.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160877924b24c9---ginagi.pdfIn PDF document text
    • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/8a6eb45259c5c2ea22fba72324f253b8/82566871162.pdfIn PDF document text
    • http://studioghittigargnano.com/userfiles/files/97022871559.pdfIn PDF document text
    • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/ecq58fj8n3qa14si32461i4plh/rujizuwupaxo.pdfIn PDF document text
    • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16099f4c66b57a---92617581171.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/708ef6ea8815d7c216529e6b4976c4e0/16928547761.pdfIn PDF document text
    • http://nbpcpentecostalchurch.com/clients/65183/File/43669581532.pdfIn PDF document text
    • https://marblo.ph/app/webroot/img/files/gisibewowekorepazidili.pdfIn PDF document text
    • https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/9372d67de5e4a3ad9fc38ea081c62d95/19949372728.pdfIn PDF document text
    • http://architettoletiziamasciotta.eu/userfiles/files/41318332506.pdfIn PDF document text
    • http://comlark.ru/userfiles/files/26304175447.pdfIn PDF document text
    • https://mtydizayn.com/userfiles/file/10673977800.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/mtsqk1cvmk4qj5j0cdvlv2c1v3/36265852873.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=solucionario+dibujo+t%C3%A9cnico+2+bachillerato+donostiarra+2020PDF link annotation

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