Malicious PDF — malware analysis report

Static analysis result for SHA-256 de440163c3153818…

MALICIOUS

PDF

66.8 KB Created: 2021-08-17 11:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 36a8812257e95e5b30d4ecd3a8218281 SHA-1: 3b35ee7d6df1c3172c90b02948e06d043d78c447 SHA-256: de440163c31538185a05eaca867997626505a9ae86267e6927362fba9bf26d99
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to compromised WordPress upload directories and other disposable hosting. These links likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9552

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://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a645e34afe5---60873019128.pdf
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af8c442db73---litodipuwebozi.pdf
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a651aada408---83954704511.pdf
    • http://flgr.ru/files/files/29579888400.pdf
    • http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/27348315366.pdf
    • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/zimazegujavupezilaziwalek.pdf
    • http://3bbb.fr/ckeditor/upload/files/vasopojibupivutok.pdf
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/rukoremukoja.pdf
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607110bb8358a---jezux.pdf
    • http://bscartridge.com/pic/19797324697.pdf
    • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/c254088917ee036472b617e55de112bc/wubitifodebi.pdf
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/88chvou7btqjoqkn4lccjet1ve/fafis.pdf
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/37610464fd5f44ea720b083622210009/6096848228.pdf
    • https://sgcaregiver.org/contents/files/85298503511.pdf
    • https://securitegenerale.tn/userfiles/file/bokorukekelamipukug.pdf
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/4969eef5f87f6d6e47248dcc1f02106c/tituda.pdf
    • http://lukoilmarine.com/ckfinder/userfiles/files/35264375873.pdf
    • https://dafelia.com/files/duxumonifuzilus.pdf
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/faebb7a92537cae14e882bc8178242b6/wuzumunotafof.pdf
    • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e1332ec5dfa---jusibopodujolorefo.pdf
    • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/udkfpv8a546dq0oqqkf1sececg/semawuniran.pdf
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/fac1e0a983661dbc961e7da845568419/mutij.pdf
    • https://lacecinella.com/writable/public/userfiles/file/rimumudururimeselosoduz.pdf
    • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/23965064533.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=who+is+the+top+earner+on+onlyfans

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