Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1572c7efec88cbd…

MALICIOUS

PDF

50.3 KB Created: 2021-03-01 21:19:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3829989dd561f10fc3303b70a721e339 SHA-1: fbb369c86434d0c48bc2ad6c2fb76ece2538018d SHA-256: e1572c7efec88cbd9aa99a69a35fd162bb0621692d40b5def9c467f36db1f3ff
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 0.7181

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://druttle.ru/award?keyword=the+selection+book+1+summary PDF link annotation
    • http://lifegirls.site/fepupejokelebalisvg3ym.pdfIn PDF document text
    • https://pesudimudoselu.weebly.com/uploads/1/3/2/6/132681392/2646194.pdfIn PDF document text
    • http://losqutoq.online/judgement_dating_guideclabw.pdfIn PDF document text
    • https://sijerixo.weebly.com/uploads/1/3/4/0/134042725/3487331.pdfIn PDF document text
    • http://tvoyoproc.fun/mi_smart_band_4_manuale_utente6cwjh.pdfIn PDF document text
    • http://shtangye.xyz/28100604498ym1pv.pdfIn PDF document text
    • http://pimebujeben.66ghz.com/vaxusedofisil.pdfIn PDF document text
    • https://kamabaxi.weebly.com/uploads/1/3/4/6/134650964/7108193.pdfIn PDF document text
    • https://zotizoju.weebly.com/uploads/1/3/5/3/135349435/1473240.pdfIn PDF document text
    • http://tidirakozodawon.getenjoyment.net/tuveb.pdfIn PDF document text
    • http://vupafigimewex.rf.gd/notumawakerebew.pdfIn PDF document text
    • http://nomapalugaji.epizy.com/lezatulatezadam.pdfIn PDF document text
    • http://wemitagokodunes.epizy.com/54790100181.pdfIn PDF document text

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