Malicious PDF — malware analysis report

Static analysis result for SHA-256 8df0b0bdc27ba527…

MALICIOUS

PDF

61.3 KB Created: 2021-03-12 00:52:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ee6ab9bb7fec6f63d7fb9c473cdbb3e9 SHA-1: a5cb940ebfc4cd1dd6af64d6528b9f1ce707f66f SHA-256: 8df0b0bdc27ba52778a580e6e9f482c1cee2a23e11f59341abbe1ceb4d9caf22
124 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6439

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/award?keyword=iti+answer+key+2020+pdf PDF link annotation
    • http://tofugezupeb.mygamesonline.org/project_management_excel_gantt_chart_template.pdfIn PDF document text
    • https://cdn.sqhk.co/telapunojawu/h7NCKgd/download_game_deep_town_mining_factory_mod_apk.pdfIn PDF document text
    • http://kittyplay.online/767640811skmih.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/college_application_process_checklist.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/iFhh5gc/.pdfIn PDF document text
    • http://belplitka.ru/paradise_island_bowl_pricesieoi5.pdfIn PDF document text
    • http://afracheat4.xyz/lejuxanunopujirala9aaqu.pdfIn PDF document text
    • http://lorewipa.scienceontheweb.net/28609417980.pdfIn PDF document text
    • http://garant-ritual.online/58839475913tuto7.pdfIn PDF document text
    • https://cdn.sqhk.co/vefasebo/gFCjhha/mawewilatudixutexupaw.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/ifjkibt/3d_galaxy_map_app.pdfIn PDF document text
    • https://4c2674ec-1430-4cec-a455-d6a35d10586e.filesusr.com/ugd/38955b_1d701bc621cc4258b93c6c69a4a5b555.pdf?index=trueIn PDF document text
    • https://2ac56fc1-f7ee-4366-9cb2-1681469c68ee.filesusr.com/ugd/b914b5_b9e10f4260514f778091dc97d8354b92.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/babylon_berlin_staffel_3_episodenguide.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/blackburn_college_apprenticeship_application_form.pdfIn PDF document text
    • https://f8071fb1-33dc-4bb9-9fe9-292e0ca0d861.filesusr.com/ugd/253000_8a5a29fe9a9b4a0cbe9da612f7bcc87f.pdf?index=trueIn PDF document text
    • https://d670dda7-df53-4ef1-8eda-d3256df28744.filesusr.com/ugd/dbbbec_5fd7b7e0079342c2bfa553c71060cc6a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/80548730420.pdfIn PDF document text
    • https://45dcde1a-aed5-4138-b95e-a0f768a283bf.filesusr.com/ugd/89441e_fd0edbcbf80a4b0687de7ef757e563b9.pdf?index=trueIn PDF document text