Malicious PDF — malware analysis report

Static analysis result for SHA-256 bef16f2b031264bd…

MALICIOUS

PDF

63.6 KB Created: 2021-08-11 11:54:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: a0e6a46140b8f30ee02e80eabff1a1c7 SHA-1: 9160ea7014cb4f107ef19b42f2087919e196ec24 SHA-256: bef16f2b031264bd6362904d87be432541e8442d65c581ad734449f696c19eda
154 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised CMS uploads and disposable hosting, indicating a link farm designed to distribute malicious content or phish users. ClamAV detection and ML classification further support its malicious nature. The embedded URLs suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8366

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://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/cfe0ca8a9df864bc8211f2c2c63b60a4/666167834.pdf In PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085303c191b8---zexezevobepabexuxeto.pdfIn PDF document text
    • https://aashianarealty.com/file/texupuwune.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3f2255bad---jirixor.pdfIn PDF document text
    • http://haciogullari.com/depo/sayfaresim/file/vamade.pdfIn PDF document text
    • https://propactionvehiclesuk.tv/userfiles/files/16436538483.pdfIn PDF document text
    • http://parvazyab.net/basefile/api203/files/83451225551.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870d57c865f---lonaxumalapeveveroradise.pdfIn PDF document text
    • http://gordostcrista.ru/userfiles/file/97723937252.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609ae6597e4ec---27503076919.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076aaedecea1---genuwovafotokalivotelefuj.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608646e546294---86821199564.pdfIn PDF document text
    • http://fzcce.com/aimgs/uload/files/woluponixarevetojiwipeko.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160869e0172e95---finez.pdfIn PDF document text
    • https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/2cefb9fdf8e014e593625f1da6625f18/wikigodu.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608239116d53e---jimiwawob.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/l0263vd505cb8ksq5cbmqvn79o/3112479714.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087495edd023---nexivi.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/bc5fb21b97c384611e4d5dd1b9c1e907/tefokonijetofoloxubebe.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076d853b7e9b---28438247525.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160720ada2ade7---nibixapinonawaranilij.pdfIn PDF document text
    • http://france-ex.com/images/blog//file/muzogilalezifenuziva.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/6ea9eba2a99294856b2ca51b2bc55722/nivamasulavad.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a65af1466a4---51279228150.pdfIn PDF document text
    • https://506hlapeta.com/files/file/subuvapexovebixugam.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e356126999f---49473661420.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=mankatha+theme+song+free+downloadPDF link annotation