Malicious PDF — malware analysis report

Static analysis result for SHA-256 c77984ae95fe6039…

MALICIOUS

PDF

58.6 KB Created: 2021-03-08 03:53:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4970139f825abc78be0362930757a0f0 SHA-1: 9870410ce5789955a3ed3277f3c75427ad5be12b SHA-256: c77984ae95fe603959287d1ab7fccb6c8c4ab60433ba3b0f4129ccd96b8e4edf
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 0.7109

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://maypoin.ru/aws?utm_term=mississippi+trial+1955+chapter+17+summary PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480732/normal_6045804c885e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409255/normal_600fdb759f812.pdfIn PDF document text
    • http://bufo.online/can_u_sell_properties_in_monopolymjpir.pdfIn PDF document text
    • http://xiviwuk.iblogger.org/kukawuxupik.pdfIn PDF document text
    • http://detobusukited.iblogger.org/3558996796.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389582/normal_5fedd5f7338bd.pdfIn PDF document text
    • http://leyloften.online/home_fire_safety_plan_templatetwobz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489057/normal_601b3b20be690.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412902/normal_602774a4a582b.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/81314084293.pdfIn PDF document text
    • http://difesasud.epizy.com/753505868.pdfIn PDF document text
    • http://bozolukiket.epizy.com/63644643909.pdfIn PDF document text
    • http://risuduk.epizy.com/46397517969.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/ishares_global_clean_energy_etf_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/75204856776.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/ninidasalopomovuxevo.pdfIn PDF document text

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