Malicious PDF — malware analysis report

Static analysis result for SHA-256 96055341daba739d…

MALICIOUS

PDF

60.9 KB Created: 2021-07-06 07:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: b9a1b2d7f102cbdf62a39158743718a6 SHA-1: 57454133be85c45b941ce28121097bee05732df6 SHA-256: 96055341daba739d841accc5341e30a1e05d96a69570ef770e7d171e1a0d3974
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of embedded URLs and the nature of the heuristics indicate a spearphishing attachment attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://burnettefamilyreunion2021.com/clients/867108/File/99052286132.pdf In PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b615d5bdb15---vibapewodunavoguxemamu.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/wasoluguga.pdfIn PDF document text
    • https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607aaeb4cdccd---14151933328.pdfIn PDF document text
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/8c85fa0e5a9b75af0ebb2ce1ada7257a/1366301135.pdfIn PDF document text
    • http://musorcentrum.hu/files/article/file/43633541176.pdfIn PDF document text
    • http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/vgoipimpjespfift870usu8015/39248961118.pdfIn PDF document text
    • http://ampletrekking.com/userfiles/file/29907917822.pdfIn PDF document text
    • http://ros-grad.ru/fck_editor_files/files/35941738007.pdfIn PDF document text
    • http://cravaluos.com/ckfinder/userfiles/files/9747383519.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b5a708ccb258e0df2752d4f9422402c8/13156862314.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb9d2373f44---51743009641.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1ecf9e48e---52543644460.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/d241c8df4e9f6d9ae37b13812c042183/rinabusararam.pdfIn PDF document text
    • http://bloomx.com/sites/all/sites/bloomx.com/files/34012792195.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/49453891248.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160b22134a1a98---zebuwewixeduwoto.pdfIn PDF document text
    • https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/k5sgsdr63peu2ebki2ascb33fe/bunijanufibolif.pdfIn PDF document text
    • https://hopadive.cz/ckfinder/userfiles/files/fijituxavibavu.pdfIn PDF document text
    • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/5a5424bd4192c385335af490c19f626a/sadovopa.pdfIn PDF document text
    • http://onishi-kyosendo.jp/archive/44565559359.pdfIn PDF document text
    • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160720fe61304f---93437645242.pdfIn PDF document text
    • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/2e8f8a571331e3643cf203436e610e95/19633644105.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080fb9019963---kojukira.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=bloodstained+ritual+of+the+night+moonPDF link annotation

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