Malicious PDF — malware analysis report

Static analysis result for SHA-256 1172a923bb084f70…

MALICIOUS

PDF

48.8 KB Created: 2021-06-07 05:20:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d3b533a709db51f7d25e2746b2fe8d46 SHA-1: 301b656dad42e77683eba8c81829393148885690 SHA-256: 1172a923bb084f7077b596f2e539aea9c387cc21e23e295dd51b745370a1d095
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous external URIs pointing to potentially compromised websites and disposable hosting. The primary purpose appears to be directing users to malicious content, likely for phishing or malware distribution, consistent with a spearphishing attachment attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7228

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://coretry.ru/uplcv?utm_term=is+anything+at+panda+express+vegan PDF link annotation
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/8d1c0db1c735719aa8362bc24c45f06b/juliwasevitesor.pdfIn PDF document text
    • https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/3e21bcbe9fa8d7402a38ff08ad6595b3/60694228038.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/wamupakujabezajezofuxag.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/fojoselixenex.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/ranijegowomukuzalukuzader.pdfIn PDF document text
    • https://footballsod.com/images/ck-uploads/files/55100639091.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0c4161538458e5d9e892e294bb7a5e82/96729815347.pdfIn PDF document text
    • https://himalayanwanderer.com/himalayan/userfiles/files/22398578075.pdfIn PDF document text
    • http://angelcabrera.com/FCKfiles/file/22166252273.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757123aff93---samerisedowiviforol.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb9cb327b30---39648025562.pdfIn PDF document text
    • http://edanieltour.com/FileData/ckfinder/files/20210528_A1AE6C6873511283.pdfIn PDF document text
    • https://avgdesign.com/userfiles/file/28974952602.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/18ee48ec607125d1360564d627ad0933/bozuk.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/3c54b5e41e5f35ee00f20478c16c6621/demulotubunufa.pdfIn PDF document text
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d65e35f33c---79141442515.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607726a3ce20f---11570172917.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/qkm0q8qsaachcgd5g7ch3hvm54/8467146404.pdfIn PDF document text