Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce93417e46760f7a…

MALICIOUS

PDF

63.7 KB Created: 2021-08-02 04:58:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: ea2e18b23f655288d5eebac7854c65af SHA-1: 19dce9f485457f88d4ae1f77445370dccb81df14 SHA-256: ce93417e46760f7a8cdea85f84052702483611a4397baff07edac64d3a8ed26b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7791

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://archism.ru/uplcv?utm_term=best+map+mods+for+american+truck+simulator PDF link annotation
    • https://atrax.hr/files/70448956377.pdfIn PDF document text
    • http://albatrossmrn.com/konadnew/userfiles/file/jidugukik.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/98hs7cmh8ra1tnugtsurotmc02/77956216790.pdfIn PDF document text
    • http://raisemoneyonline.org/clients/6/69/691275cf9a36cab982b2498ebdc715be/File/vowisu.pdfIn PDF document text
    • http://aldara-latinoamerica.com/userfiles/file/3955154957.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e01364b0c---84109895733.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/5vdevfbkeeqk91h35rufleopfg/13542877921.pdfIn PDF document text
    • http://vistobrasil.net/uploads/file/20144031137.pdfIn PDF document text
    • http://vzwsportenmuziek.com/content_docs/buxusotegedejov.pdfIn PDF document text
    • https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16092ebd287cae---nexafikadatelu.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607270806ad3b---vosikunukukurojija.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/jenigagufilurikanum.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b693886d402---98833296289.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/b3169a400233ad71393a211a94ed378a/mitikejinowozuzumoxuw.pdfIn PDF document text
    • https://lawina-radom.pl/files/file/wujetiroka.pdfIn PDF document text
    • http://desagresbrts.com/clients/34568/File/26061754877.pdfIn PDF document text
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6d9786dc2---nogukolemevenoderos.pdfIn PDF document text
    • http://petersonhigh.com/clients/33446/File/25684091287.pdfIn PDF document text
    • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/e1rmffoigjguh2ql9939kplb28/28054312794.pdfIn PDF document text
    • http://ud2-140.com/files/dotogixiluluxugaposemaf.pdfIn PDF document text
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/f47dbd7cda59369757a1b5bc4cc5a73b/17316307429.pdfIn PDF document text
    • http://short-story.ru/upload/file/7592649963.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/a58617a9e88e53a2a95a322f7954c54c/xalorijipudeposu.pdfIn PDF document text
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/qr8feftmqskotsvjb3rrn4n4if/tujokuwugonepikonoxesi.pdfIn PDF document text
    • http://heibldr.hu/FCKfeltoltott/file/36731582373.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160741f9b36a88---98653223841.pdfIn PDF document text

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