Malicious PDF — malware analysis report

Static analysis result for SHA-256 8652d98da58a053d…

MALICIOUS

PDF

51.6 KB Created: 2021-06-20 17:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: be4cbe6d073a741cc7757fbc72161fe3 SHA-1: 4ba9458ebb4c51fca68813ae95d3f7ac4b37a4b6 SHA-256: 8652d98da58a053ddcfcb5ba6eefe05ecee2890a239010e7113f15029af3dd44
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to exploit users by directing them to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7129

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://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609280ae70b19---4415101300.pdf In PDF document text
    • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/80fa53953cafa2cbcacb323e8d21ade9/50722968648.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160812a91d2811---xetusupulafosedu.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/poronobebuzapelomipewa.pdfIn PDF document text
    • https://pfhotel.gr/ckfinder/userfiles/files/94488346780.pdfIn PDF document text
    • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/15170c56a2da895f25db72fd1a8853cc/vivuso.pdfIn PDF document text
    • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/2oq22et85hthuc6sotlmmu850a/vuvogozirubisolozu.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/3720785c997abdcc0ff117e2992246c9/15033540888.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/97f1afd85e5dd962c5ab805d2838ebd8/bewibadaxen.pdfIn PDF document text
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/8eeecb15a2252682419f9c62ee6b4fc7/84341308746.pdfIn PDF document text
    • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/fho35fc4akl167bl1pn6ikeudo/99591188032.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/4d1c356cab63fef69a46ebc5e604ecb7/80821771407.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2508fb2358---27567277187.pdfIn PDF document text
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160887da7800cc---durewekidete.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0ea32ac02f---xunuxidazuri.pdfIn PDF document text
    • http://kapli74.ru/upload_picture/feseporafenarabusavego.pdfIn PDF document text
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c31b0855f54---25144191319.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=naked+afraid+uncutPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.