Malicious PDF — malware analysis report

Static analysis result for SHA-256 cea69d53d4b7edcf…

MALICIOUS

PDF

58.2 KB Created: 2021-07-22 03:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 96034b5f29fda43d804f1e375bb9b799 SHA-1: 66d02a7a4f32546dc97ea3dbc6b5083b55b8e84b SHA-256: cea69d53d4b7edcf812c0e68946b88d0515ef099d0d9c76d6d7549ecd3bd339e
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous links to external sites, many of which are hosted on compromised WordPress installations or disposable domains. This suggests the document is designed to redirect users to malicious content or facilitate further infection. The ClamAV detection and ML classifier strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8274

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://clinicamanila.com/ckfinder/userfiles/files/6243790628.pdf In PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/a24475e5c094624fb2016339822b2824/pokovazonupe.pdfIn PDF document text
    • http://rabotatver.ru/userfiles/admin/23590112308.pdfIn PDF document text
    • http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/202163343248899.pdfIn PDF document text
    • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/aad2cb724762f6a7be0df010c1d4af95/fagokerexedisimizoxega.pdfIn PDF document text
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/kapce3v9qp37l209mc80sm6kam/95320444597.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/ab4f616484a9c59d6593f8a1ced3b646/xotoredugidezaketokuv.pdfIn PDF document text
    • http://controlsystemco.com/cache/fck_files/file/2865685652.pdfIn PDF document text
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/6159073662e3b073fc333464e7095e5c/towevarevumisagaxutonediw.pdfIn PDF document text
    • https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/145ba102c1f947e1308e89b402e26e49/sapodedidojudes.pdfIn PDF document text
    • https://misionesmedellin2030.com/wp-content/plugins/super-forms/uploads/php/files/u4qpidn0ajvdi2pfob6n48ia80/jewegilunajesejukaf.pdfIn PDF document text
    • https://ytdrive.com/CKEdit/upload/files/sewupetanos.pdfIn PDF document text
    • http://kondicionery-vidnoe.ru/upload_picture/file/febesadug.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160983e9e61f15---valejixajumapo.pdfIn PDF document text
    • http://csc0535.com/userfiles/file/20210709094601_ng2tzu.pdfIn PDF document text
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/b8pr6odhn2orjgaj1f2tbrkfm2/35552819827.pdfIn PDF document text
    • https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/5677804330.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/26984527645.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a801340962a---navupena.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/d99238ac2ab8129bd6fa413392d3eef7/66112782851.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/4333410bd6624b3b064a292fa4cbb934/dezesejorumepudas.pdfIn PDF document text
    • http://artkulinaria.pl/sites/default/files/file/96357061276.pdfIn PDF document text
    • http://agnieszkapawlik.com/userfiles/file/49495277157.pdfIn PDF document text
    • https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/nejonumijazex.pdfIn PDF document text
    • http://anhuizhkj.com/upload_fck/file/2021-5-5/20210505154938675153.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608f945a79f89---78079573742.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=picture+size+editorPDF link annotation

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