Malicious PDF — malware analysis report

Static analysis result for SHA-256 392875062ba750be…

MALICIOUS

PDF

55.8 KB Created: 2021-03-27 21:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1c934a24e46353c35f8cab32221021b2 SHA-1: 67f26929cc847072feecf0fe2de6b796698cc352 SHA-256: 392875062ba750be95a85447784ad46967b5cf656daa0b3def62cdba9ac8647d
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 0.7030

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://golowaki.ru/award?keyword=alcanos+propiedades+quimicas+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369933/normal_60123392b3d64.pdfIn PDF document text
    • http://dkblogin-de.com/rigirosuravovavujilosini9o2kr.pdfIn PDF document text
    • http://myluckybet.xyz/who_is_dish_network_internet_providerzwi3d.pdfIn PDF document text
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    • http://chisto-chisto52.ru/belukikocpfno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489977/normal_6009770ebf19e.pdfIn PDF document text
    • http://domainlimax.xyz/kisijadepomixaniforokepev8xek.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417808/normal_600e21bfafc1b.pdfIn PDF document text
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    • http://freud.icu/glass_animals_the_other_side_of_paradise_official_video59n0h.pdfIn PDF document text
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    • https://cdn-cms.f-static.net/uploads/4497353/normal_601b51194a2bc.pdfIn PDF document text
    • http://electrumwallet.buzz/couple_avatar_make_your_own_couple_avatar_apk9pqkh.pdfIn PDF document text
    • http://dombitarf.ru/radimitepesoxizatuvegifbomkn.pdfIn PDF document text
    • http://tekplafond.xyz/76079990251m9zv0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/771a3e22-c544-4377-afce-68b7821e1b25/95921201970.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/144b4e5e-2912-43d8-9bbb-9c723a4ad9fd/relion_ultima_glucose_strips.pdfIn PDF document text