Malicious PDF — malware analysis report

Static analysis result for SHA-256 4647da4d44d55b95…

MALICIOUS

PDF

60.8 KB Created: 2021-08-19 22:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 7504efe48d4c48bacd5bbe87969ae368 SHA-1: 45e1deec7528de1c155b65a22b56586a89f55c7e SHA-256: 4647da4d44d55b953c9448ce78f51108920697d2acfd9ea2117156468fba802d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected as a PDF phishing trojan by ClamAV. Static analysis reveals it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites. These links likely serve as lures to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3864

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 https://crewmak.ru/uplcv?utm_term=how+long+does+it+take+for+bones+to+set+after+rhinoplasty PDF link annotation
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b10c15c9f0---58464092247.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/7b5e55c74d4e9176ffc407c7e49cc510/bijawuzafipup.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e5fc897b1---48080327042.pdfIn PDF document text
    • http://www.aadhar-interior.com/userfiles/file/9853976330.pdfIn PDF document text
    • http://sevenseahotel.com/uploads/images/files/93324061418.pdfIn PDF document text
    • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610b45bcb584f---tawexepu.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16100a60635834---98045880456.pdfIn PDF document text
    • http://mondoacquapiscine.com/userfiles/files/dotupunajozabo.pdfIn PDF document text
    • https://dnm.tw/uploads/files/202108181556187228.pdfIn PDF document text
    • http://skogsformedling.se/bilder_umeny/File/77953263012.pdfIn PDF document text
    • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf5c9050bc---bulapitejofawifunopexuma.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9c36004bf---97227065190.pdfIn PDF document text
    • http://hrzservices.com/uploadfiles/file/28436161690.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096254643d4d---nudugevafine.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/d0t8gaoq4g3ec80lahd5ngaifg/zewubusutenut.pdfIn PDF document text
    • https://motelandratecuci.ro/userfiles/file/votel.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3074ea4362---23303810813.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607be96f445f0---76284072022.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16074ff761d66a---nuletenugexamolodop.pdfIn PDF document text
    • https://oddluzanie.net/userfiles/file/wutajodox.pdfIn PDF document text
    • https://amthanhanhsangchinhhang.vn/upload/files/55763331284.pdfIn PDF document text
    • https://satuldelut.ro/ckfinder/userfiles/files/98069252185.pdfIn PDF document text
    • http://neodentpetrosino.it/userfiles/files/90526915777.pdfIn PDF document text

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