Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcdb9e83b58a799f…

MALICIOUS

PDF

64.0 KB Created: 2021-03-25 14:14:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 98824dce3940ba3305f40bf06d0a1450 SHA-1: db571e9d7425905bcea2281b42efe74e899ac70f SHA-256: dcdb9e83b58a799f2f09bef872f2227195b2fdc4ba248479f72a40c811c5dee6
124 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.6626

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://ponafet.ru/strik?utm_term=what+is+the+series+dark+desire+about PDF link annotation
    • https://vewusijonaw.weebly.com/uploads/1/3/4/4/134489037/munidos.pdfIn PDF document text
    • https://xamatokixixite.weebly.com/uploads/1/3/5/3/135336409/67f00b60dcd77b4.pdfIn PDF document text
    • https://jodalutuz.weebly.com/uploads/1/3/4/4/134444421/kejojo.pdfIn PDF document text
    • https://regujume.weebly.com/uploads/1/3/4/3/134339948/5455513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461497/normal_602428a88210f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391047/normal_6053876fc0da8.pdfIn PDF document text
    • https://cdn.sqhk.co/sidogorego/XhiaUi7/82794315929.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415524/normal_5fe6cf78e8387.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/mgjXdRW/farkle_score_sheets_printable.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404966/normal_5ff770c1126a2.pdfIn PDF document text
    • https://borusolu.weebly.com/uploads/1/3/4/3/134327960/titudovebigepiditit.pdfIn PDF document text
    • http://bowupezik.epizy.com/xotatimufof.pdfIn PDF document text
    • http://borarujedumamut.epizy.com/bomba_estereo_somos_dos.pdfIn PDF document text
    • http://wetusadesaxoni.rf.gd/rinoxozitaz.pdfIn PDF document text
    • http://kofufinaniba.rf.gd/buckley_v_valeo.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/cisco_ise_3615_datasheet.pdfIn PDF document text
    • http://jitawalidi.epizy.com/42883815525.pdfIn PDF document text
    • http://depevabevidot.rf.gd/33491825987.pdfIn PDF document text
    • http://lelirovosas.epizy.com/runinaxefawu.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/biblia_reina_valera_1960_en_linea_con_concordancia.pdfIn PDF document text

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