Malicious PDF — malware analysis report

Static analysis result for SHA-256 265c33c2657840fc…

MALICIOUS

PDF

62.0 KB Created: 2021-08-10 04:51:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 1ef68cda97d7c84741a56105c9e7452f SHA-1: 25bc938e1d115d4c7db2ae8d59fcad7e851cde34 SHA-256: 265c33c2657840fcbbe593b6507632eccf628bbf11a3efe1ebc12f45d3224837
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious files. The ClamAV detection and ML classifier further support its malicious nature, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6959

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://crysiq.ru/uplcv?utm_term=papa%27s+scooperia+free+download PDF link annotation
    • https://mosconi.net/userfiles/file/xobomezunibeziposomelif.pdfIn PDF document text
    • http://vansuloi.com/uploads/userfiles/file/41695984890.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6df842ce6---rasuvakariker.pdfIn PDF document text
    • http://tzoetemondje.be/uploads/files/rerikidajikagezugoru.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/71399941012.pdfIn PDF document text
    • http://bsinteriordesigner.com/userfiles/files/xusidekeku.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb0051e5e4---78333525656.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c742f671fd---75029556089.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b26a08fd7f---9930125124.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e44a013862f---xoxex.pdfIn PDF document text
    • http://ladyqueen.it/userfiles/files/kakiturisimiwivowod.pdfIn PDF document text
    • https://www.chablis-gautherin.com/ckfinder/userfiles/files/nakiviwoxupabavinofipaz.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0bd7819176---mavaboberisadifolonake.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d6469fc3f7a---55006195328.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/0ce408ae890b324f51a8347ed9e53f61/19084773002.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16088bf0e712bc---sepinolematizejixegiva.pdfIn PDF document text
    • http://rolmech-strzelno.pl/Upload/file/temumazirabadekapodimaz.pdfIn PDF document text
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608014186c264---38930216494.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/1384cba78f437d894cb81ab9294d93ac/dexetopovuzagisiwefutup.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bebdb7bbc71---74868635385.pdfIn PDF document text
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091de5962d77---60004949297.pdfIn PDF document text
    • http://55thocscompany.com/clients/62662/File/59177578090.pdfIn PDF document text
    • https://avvocatoboretti.it/file/vawifixazigoda.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/a9ac13b66df79819ccf7f0381c6669c9/83265347893.pdfIn PDF document text
    • http://extintoresorigen.com/images/editor/61278661995.pdfIn PDF document text
    • https://powermailer.in/userfiles/file/govasokazodavadu.pdfIn PDF document text

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