Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f93288294f5b75…

MALICIOUS

PDF

62.5 KB Created: 2021-08-21 22:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: d7dfae06c3ba27f886dded05764aeaf7 SHA-1: 434f142285c65708f935d533f8d2dc506d385c41 SHA-256: 62f93288294f5b75e1b8eb75dae3ebea3b9b5a52fae61998445d49b5df3d3414
174 Risk Score

Malware Insights

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

The PDF contains numerous embedded URIs pointing to various compromised websites, many of which host further PDF files. This structure suggests a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9557

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/203ed97423d5ed9c9459c52fc6a30b89/jigigewamoge.pdf In PDF document text
    • http://beloezoloto.ru/userfiles/file/lofujuvuges.pdfIn PDF document text
    • https://businesslife.com/content/file/20538171337.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160998eee9fd70---31516430698.pdfIn PDF document text
    • http://aj-logistics.com/stock/userfiles/file/latoru.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/54vmvs0b4kgfihja1aq7r0kmi3/21647217799.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16084375f665fe---2079608755.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/f5n7qfjfc131m69n0f4hg9dadv/zezamosukij.pdfIn PDF document text
    • http://ecologie-energie.com/userfiles/file/lifomapoxo.pdfIn PDF document text
    • https://licorne-hotel-restaurant.com/userfiles/file/kaguvimajugozinewa.pdfIn PDF document text
    • http://globalroomplus.com/bot/ckfinder/uf/files/wogad.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/d1ee3bdae6ac8bc89c1aba7125dca539/15358906829.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa46a47821---zomox.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080ef134dfee---12622611526.pdfIn PDF document text
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/729d890b15051875854d715e7eb7198d/xezolujabanakujuwikema.pdfIn PDF document text
    • http://pressvaluation.net/userfiles/file/faguzukerefetixufibije.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/lamozoxeduxitokunoxe.pdfIn PDF document text
    • http://cokhihoangvinh.com/uploads/userfiles/file/77353923710.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/uboqqk4gpu37tarkampifarmvc/nemol.pdfIn PDF document text
    • https://olivierdaulte.com/ckfinder/userfiles/files/fugapup.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/remofusogedovawafaxe.pdfPDF link annotation
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/pijoma.pdfIn PDF document text
    • http://globeksa.com/ckfinder/userfiles/files/16795538410.pdfIn PDF document text
    • http://zsmnowakowski.pl/userfiles/file/dukazigekiluxor.pdfIn PDF document text
    • http://olneyjune65.com/clients/d/dc/dcef5d22f85ec69f5810ba62c2e8cf46/File/vopagavemobure.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=income+and+expenditure+account+sample+problemsPDF link annotation

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