Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c6908203a0f838…

MALICIOUS

PDF

67.8 KB Created: 2021-06-25 23:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 124704ee2b627e3f5a2d0fac80b5e9a0 SHA-1: 8f13b64aefe9f857d9dec63881ff029d5aea73fc SHA-256: 37c6908203a0f8386ef320de68119410872eb473b49f08984e8ad18a1156f029
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains numerous links, many of which point to compromised WordPress sites and disposable hosting, indicating a link farm designed to lure users to malicious content. ClamAV detection confirms this file is malicious, likely a phishing or trojan delivery mechanism. The embedded links suggest an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4829

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 http://autohondl.cz/userfiles/file/73569260226.pdf In PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/1377773bc9d3809fea2a2219901b0187/5920134605.pdfIn PDF document text
    • http://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/41117268770.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/tuvipunetod.pdfIn PDF document text
    • https://semsaesp.com/ckfinder/userfiles/files/50423310635.pdfIn PDF document text
    • https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/e3bc7fc9c94fed031500c7b7a023abc0/91066141747.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0fabf3f16---26721393118.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/7qkv4eks3ln6c7tukrmqqec2ct/77005643568.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/61cff4a8f5656b6f4b00bb240da1daa3/fimosefuzeki.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/16084d04094de6---jogowedavamowelitewefu.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ced151015---sutamunusig.pdfIn PDF document text
    • http://woorymart.com/userData/board/file/59369890262.pdfIn PDF document text
    • http://studiovalentini.eu/userfiles/files/pijebilimalukexopi.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/9fbd62ad40b0aeffcda564ad295aac51/gupawetesumebibofedesab.pdfIn PDF document text
    • http://tikatalog.sk/_files/file/firafapurujuvapalafirov.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2bee2ebfd7---58684218293.pdfIn PDF document text
    • http://sbnjl.com/userfiles/files/lemujaxorupoxolevugusaji.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/mhm5rbri49stievuchldiecnof/54707984916.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/a11b4862dbeaa8921ab41e98ed5dfae9/92656507451.pdfIn PDF document text
    • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/l1rpmkt4d1p0v5d14otqbo3sub/dunop.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160823d3786156---katixapoxusuti.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/fital.pdfIn PDF document text
    • http://ahkjt.com/upfile/file/wevajorozododinorafu.pdfIn PDF document text
    • https://soechi.id/userfiles/file/luzepomivapodaxubakaje.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=atoms+and+molecules+class+9+book+pdf+downloadPDF link annotation