Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b2a542f956bb6c6…

MALICIOUS

PDF

55.8 KB Created: 2021-05-27 19:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7ce047d0e943f1c0c34a1e526eabceb SHA-1: 29a4364a25eb6f7c6ae0e1ced910a3927d2e0f72 SHA-256: 6b2a542f956bb6c6eec0ef2304a962d9b9e9ab8755cccad977b25330848ba455
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple compromised WordPress sites, indicating an attempt to host malicious content or redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the structure and URL patterns are consistent with malicious PDF lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7086

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 https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/1gi0v703vusa3n69msqfsem4c9/pubipikamovuxag.pdf
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/ad4064382b717261feb8e4713371901b/fuxobe.pdf
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/r6a8rfr4egc3cvc5u1qdreaq6f/8128747358.pdf
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/ij2s6gfkhb0616o9cp7u7rgf2f/vazuxizeloxamuvezijuj.pdf
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/517e54a7223a8cac921213143a6a2939/641840297.pdf
    • http://tamlaproject.com/userData/board/file/xotilokosozanom.pdf
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607673543dcd1---nitifomijagizukawal.pdf
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5620de630---fidupitawegaloziwo.pdf
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/71693004927.pdf
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160838b703edec---84063918921.pdf
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a992db58130---67635536451.pdf
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aea7ac085d9---99351267365.pdf
    • http://temple.mo/userfiles/file/ladawileka.pdf
    • http://contentworks.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606e2193f297d---natewunukipokemoja.pdf
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160776dbe1b433---zusenobuwubumag.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=ver+pel%25C3%25ADcula+completa+gratis+de+chin+chin+el+teporocho

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